
Helmut Werheit | Prof. Dr. rer. nat.
Publications / Publikationen
1969
1970
1971
1972
1974
1976
1979
1981
1983
1984
1985
1990
1991
1994
1996
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1999
2006
2003
2004
2014
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2011
2020
1. J. Jaumann, H. Werheit:
Bestimmung der optischen Konstanten von Halbleitern mit nicht idealen Oberflächen
Z. Naturforsch. 24 a, 1131 (1969).
2. J. Jaumann, H. Werheit:
Optische und photoelektrische Eigenschaften von beta-rhomboedrischem Bor,
I. Optische Konstanten, Bandkante und Absorption freier Ladungsträger;
Phys. stat. sol. 33, 587 (1969).
3. J. Jaumann, H. Werheit:
Optical Absorption and Photoelectrical Effects in beta-rhombohedral Boron;
Boron Vol. 3, Electron Technology (Warsaw 3, 227 (1970).
4. H. Werheit:
Optical and Photoelectrical Effects of beta-Rhombohedral Boron,
II. Photoeffects;
Phys. stat. sol. 29, 227 (1970).
5. H.Werheit, A. Hausen, H. Binnenbruck:
On the Optical Anisotropy of beta-Rhombohedral Boron;
Phys. stat. sol. 29, K 7 (1970)
6. H. Binnenbruck, A. Hausen, P. Runow, H. Werheit:
Über Probenpräparation, Oberflächenzustand und Kristallbaufehler von einkristallinem beta-rhomboedrischem Bor;
Z. Naturforsch. 25 a, 1431 (1970).
7. H. Werheit:
Die Halbleitereigenschaften des Bors;
In Festkörperprobleme X, Herausg. O. Madelung,
Pergamon - Vieweg, Braunschweig (1970) p. 189.
8. H. Werheit, A. Hausen, H. Binnenbruck:
Intrinsic Optical Absorption in Single Crystal beta-Rhombohedral Boron from 1.8 to 3.5 eV;
Phys. stat. sol. 42, 733 (1970).
9. H. Werheit, H.G. Leis:
On the Conductivity Mechanism of beta-Rhombohedral Boron;
Phys. stat. sol. 41, 247 (1970).
10. H. Werheit, P. Runow, H.G. Leis:
On Boron Suboxide Layers and Surface Conduction of beta-Rhombohedral Boron;
Phys. stat. sol. (a) 2, K 125 (1970).
11. Werheit, F. Günneberg, J. Jaumann,
Liquefaction of oxygen using the Joule-Thomson effect.
In H.F. Meiners (ed.) Physics, Demonstration Experiments Vol. II, The Ronald Press Company, New York, 1970, p. 824 and 1297.
12. J. Jaumann, H. Werheit, F. Günneberg,
Shielding of the magnetic field of electrical currents.
In H.F. Meiners (ed.) Physics, Demonstration Experiments Vol. II, The Ronald Press Company, New York, 1970, p. 916.
13. J. Jaumann, H. Werheit, F. Günneberg,
Forces between magnetic dipoles.
In H.F. Meiners (ed.) Physics, Demonstration Experiments Vol. II, The Ronald Press Company, New York, 1970, p. 956.
14. J. Jaumann, H. Werheit, F. Günneberg,
Forces between magnets and soft iron.
In H.F. Meiners (ed.) Physics, Demonstration Experiments Vol. II, The Ronald Press Company, New York, 1970, p. 957.
15. J. Jaumann, H. Werheit, F. Günneberg,
Shielding of forces between magnets.
In H.F. Meiners (ed.) Physics, Demonstration Experiments Vol. II, The Ronald Press Company, New York, 1970, p. 962.
16. J. Jaumann, H. Werheit, F. Günneberg,
The DE effect in ferromagnetic materials.
In H.F. Meiners (ed.) Physics, Demonstration Experiments Vol. II, The Ronald Press Company, New York, 1970, p. 984.
17. J. Jaumann, H. Werheit, F. Günneberg,
The inverse magnetostrictive effect.
In H.F. Meiners (ed.) Physics, Demonstration Experiments Vol. II, The Ronald Press Company, New York, 1970, p. 986.
18. H. Werheit, F. Günneberg,
Resonance fluorescence of sodium vapor.
In H.F. Meiners (ed.) Physics, Demonstration Experiments Vol. II, The Ronald Press Company, New York, 1970, p. 1214.
19. H. Werheit, A. Hausen, H. Binnenbruck:
Optical Properties of Boron Carbide and Comparison with Beta-Rhombohedral Boron;
Phys. Stat. Sol. (b) 47, 153 (1971).
20. H. Werheit, A. Hausen, H. Binnenbruck:
Optical Anisotropy of Beta-Rhombohedral Boron;
Phys. stat. sol. (b) 51, 115 (1972).
21. H. Werheit, H. Binnenbruck:
Comparative Investigation of the Optical Absorption and the Photoabsorption in Beta-Rhombohedral Boron, Amorphous Boron and Boron Carbide;
in: Bor, Poluchenie, Struktura i Svoistva (Proc. 4th Int. Symp. Boron, Borides and Rel. Comp., Tbilisi (1972)), Ed. F.N. Tavadze, NAUKA, Moscow (1974) p. 235.
22. H. Binnenbruck, H. Werheit:
Lattice Vibrations and Optical Properties of Beta-Rhombohedral Boron in the far IR Region;
J. less-common Met. 47, 91 (1976).
23. H. Werheit:
On the Influence of the Atomic Ratio of Boron to Carbon on the Photon Energies and the Electronic Properties of Boron Carbide;
J. less-common Met. 67, 143 (1979).
24. H: Binnenbruck, H. Werheit:
IR-Active Phonons of Boron and Boron Carbide;
Z. Naturforsch. 34 a, 737 (1979).
25. H. Werheit, K. de Groot, T. Lundström:
Metal-Insulator Transition in Boron Carbide;
Phys. stat. sol. (b) 97, 220 (1980).
26. H. Werheit, K. de Groot, W. Malkemper, T. Lundström:
On the Metal-Insulator Transition of Boron Carbide;
J. less-common Met. 82, 153 (1981).
27. H. Werheit, K. de Groot, W. Malkemper, T. Lundström:
On n-Type Beta-Rhombohedral Boron;
J. less-common Met 82, 153 (1981)
28. H. Werheit:
Boron;
in Landoldt-Börnstein, New Series Group III, Vol. 17e, Semiconductors, Ed. O. Madelung, M. Schulz, H. Weiss, Springer Berlin, Heidelberg, New York, Tokyo (1983) p. 9.
28. H. Werheit:
Boron Compounds;
in Landoldt-Börnstein, New Series Group III, Vol. 17g, Semiconductors, Ed. O. Madelung, M. Schulz, H. Weiss, Springer Berlin, Heidelberg, New York, Tokyo (1984) p. 9.
30. H. Werheit, R. Franz:
States of Thermal Equilibrium in Beta-Rhombohedral Boron and Their Alteration by Optical Excitation;
Phys. stat. sol. (b) 125, 779 (1984)
31. H. Werheit, K.A. Schwetz:
Comment to the Paper "The Role of Free Carbon in the Transport and Magnetic Properties of Boron Carbide";
J. Phys. Chem. Solids 46, 1331 (1985).
32. H. Werheit:
Optical Phonons of Boron Carbide Depending on the Composition;
J. less-common Met. 117, 17 (1986).
33. H. Werheit, R. Franz, I. Higashi:
Some Optical and Photoelectrical Properties of LiAlB14.
J. less-common Met. 117, 169 (1986).
34. H. Werheit, R. Franz:
Low Temperature Phase Transition of Beta-Rhombohedral Boron and the Influence of Optical Excitation;
J. less-common Met. 163, 17 (1986).
35. H. Werheit:
Vibrational Properties of Boron and Boron-Rich Borides;
in: Boron-Rich Solids, Eds. D. Emin, T. Aselage, C.L. Beckel, I.A. Howard, C. Wood, AIP Conference Proceedings 140, Albuquerque, New Mexico (1986) p. 325.
36. R. Franz, H. Werheit, A.J. Nadolny:
Optical and Photoelectric Investigation of Pure and Carbon-Doped Beta-Rhombohedral Boron;
in: Boron-Rich Solids, Eds. D. Emin, T. Aselage, C.L. Beckel, I.A. Howard, C. Wood, AIP Conference Proceedings 140, Albuquerque, New Mexico (1986) p. 340.
37. H. Werheit, S. Rospendowski:
Anisotropy of the Electrical Conductivity of Boron Carbide;
in: Boron-Rich Solids, Eds. D. Emin, T. Aselage, C.L. Beckel, I.A. Howard, C. Wood, AIP Conference Proceedings 140, Albuquerque, New Mexico (1986) p. 234.
38. H. Werheit, R. Franz, D. Schneider, M. Wolf, G. Brann:
Hall-Effekt und Magnetische Widerstandsänderung von einkristallinem Borkarbid in hohen Magnetfeldern;
Wiss. Ber. HMFA Braunschweig, Ed. D. Schneider 9, 53 (1985/86).
39. H. Werheit, H. Haupt:
Lattice Vibrations, MIR and FIR Optical Properties of Boron and Icosahedral Boron-Rich Borides,
I. Alpha-Rhombohedral Structure Group;
Z. Naturforsch. 42a, 925 (1987).
40. H. Werheit (Editor):
Proceedings of the 9th International Symposium on Boron, Borides and Related Compounds
Sept. 21 - 25, 1987, Universität Duisburg.
41. H. Werheit:
Optical Characterization of Icosahedral Boron Modifications and Compounds;
in H. Werheit (ed.) Proc. 9th Int. Symp. Boron, Borides and Rel. Comp., Duisburg 1987, p. 142.
42. V.N. Gurin, M.M. Korsukova, Yu.B. Kuz'ma, N.F. Chaban, A.A. Nechitailov, H. Haupt,
H. Werheit, V. Siejak:
Variation in Structural and Optical Characterization of Single Crystals of the Ternary Compound Al1.1Be0.6B22 within its Homogeneity Region;
in H. Werheit (ed.) Proc. 9th Int. Symp. Boron, Borides and Rel. Comp., Duisburg 1987, p. 275.
43. H. Haupt, H. Werheit, T. Lundström, I. Higashi:
Modification of the IR-Active Phonon Spectra of Beta-Rhombohedral Boron in Interstitial Solid Solutions with Mn, Fe, and Cu/Al.;
in H. Werheit (ed.) Proc. 9th Int. Symp. Boron, Borides and Rel. Comp., Duisburg 1987, p. 277.
44. H. Haupt, H. Werheit, M.E. Antadze, G.V. Tsagareishvili, G.P. Tsiskarishvili,
F.N. Tavadze:
Influence of Isotope Enrichment and of Annealing on the IR-Active Phonons in Beta-Rhombohedral Boron;
in H. Werheit (ed.) Proc. 9th Int. Symp. Boron, Borides and Rel. Comp., Duisburg 1987, p. 279.
45. R. Franz, H. Werheit:
Small Polarons in Beta-Rhombohedral Boron;
in H. Werheit (ed.) Proc. 9th Int. Symp. Boron, Borides and Rel. Comp., Duisburg 1987, p. 364.
46. H. Werheit, V. Siejak, R. Franz:
Influence of Carbon in Beta-Rhombohedral Boron on the Absorption Edge;
in H. Werheit (ed.) Proc. 9th Int. Symp. Boron, Borides and Rel. Comp., Duisburg 1987, p. 366.
47. H. Werheit, R. Franz, D. Schneider, E. Wolf, G. Brann:
Hall Effect and Magnetoresistance of Single Crystalline Boron Carbide in High Magnetic Fields;
in H. Werheit (ed.) Proc. 9th Int. Symp. Boron, Borides and Rel. Comp., Duisburg 1987, p. 381.
48. H. Werheit, H. Haupt, U. Kuhlmann, V. Siejak, T. Tanaka:
Optical and Electrical Properties of YB66 Single Crystals;
in H. Werheit (ed.) Proc. 9th Int. Symp. Boron, Borides and Rel. Comp., Duisburg 1987, p. 383.
49. H. Haupt, H. Werheit, V. Siejak, U. Kannengießer, I. Higashi:
Optical Properties of the Beta-Tetragonal Borides alpha AlB12 and Al1.2Be0.5B22 and the Orthorhombic Borides LiAlB14 and MgAlB14;
in H. Werheit (ed.) Proc. 9th Int. Symp. Boron, Borides and Rel. Comp., Duisburg 1987, p. 385.
50. H. Haupt, H. Werheit, V. Siejak, V.N. Gurin, M.M. Korsukova:
Absorption Edge and IR-Active Phonons of C2Al3B48;
in H. Werheit (ed.) Proc. 9th Int. Symp. Boron, Borides and Rel. Comp., Duisburg 1987, p. 387.
51. H. Werheit:
Optical Properties of the Crystalline Modifications of Boron and Boron-Rich Borides;
in Progress in Crystal Growth and Characterization,
Ed. V.N. Gurin, Pergamon, Oxford Vol. 16, 179 (1988).
52. R. Franz, H. Werheit:
The Jahn-Teller Effect of the B12 Icosahedron and Its General Influence on the Electronic Properties of Boron-Rich Solids;
Europhys. Lett. 9, 145 (1989)
53. H. Werheit:
On the Electronic Properties of Boron Carbide.
In: The Physics and Chemistry of Carbides, Nitrides and Borides; Editor: R. Freer, NATO ASI Series E: Applied Sciences Vol. 185, Kluwer Acad. Publ., Dordrecht, The Netherlands, 1990 p. 677.
54. H. Werheit:
Optical Properties of Boron-Rich Solids with Icosahedral Structure.
In: The Physics and Chemistry of Carbides, Nitrides and Borides; Editor: R. Freer, NATO ASI Series E: Applied Sciences Vol. 185, Kluwer Acad. Publ., Dordrecht, The Netherlands, 1990 p. 705.
55. H. Werheit, H. Haupt, T. Lundström, I. Higashi:
Lattice Vibrations, MIR and FIR Optical Properties of Boron and Icosahedral Boron-Rich Borides,
II. Beta-Rhombohedral Structure Group;
Z. Naturforsch. 45a, 1016 (1990).
56. R. Franz, H. Werheit:
Influence of the Jahn-Teller Effect on the Electronic Band Structure of Boron-Rich Solids Containing B12 Icosahedra.
In: Proc. 10th Int. Symp. Boron, Borides and Related Compounds, Albuquerque, New Mexico, USA. Editors: D. Emin, T. Aselage, C. Beckel, A. Switendick, (1990), AIP Conference Proceedings 231, p. 29.
57. U. Kuhlmann, H. Werheit, T. Dose, T. Lundström:
IR Optical Properties of Fe-Doped Beta-Rhombohedral Boron.
In: Proc. 10th Int. Symp. Boron, Borides and Related Compounds, Albuquerque, New Mexico, USA; Editors: D. Emin, T. Aselage, C. Beckel, A. Switendick (1990), AIP Conference Proceedings 231 p. 340.
58. H. Werheit, U. Kuhlmann, N.E. Solov'ev, G.P. Tsiskarishvili,
G.V. Tsagareishvili:
Optical Properties of α-Rhombohedral Boron.
In: Proc. 10th Int. Symp. Boron, Borides and Related Conmpounds, Albuquerque, New Mexico, USA, Editors: D. Emin, T. Aselage, C. Beckel, A. Switendick (1990) AIP Conference Proceedings 231, p. 350.
59. U. Kuhlmann, H. Werheit, B. Fahy, P. Perkins:
Optical Properties of 10B Enriched ß-Rhombohedral Boron.
In: Proc. 10th Int. Symp. Boron, Borides and Related Compounds, Albuquerque, New Mexico,USA Editors: D. Emin, T. Aselage, C. Beckel, A. Switendick (1990); AIP Conference Proceedings 231, p 148.
60. H. Werheit, U. Kuhlmann, R. Franz, W. Winkelbauer, B. Herstell, D. Fister,
H. Neisius:
Electronic Transport Properties of Boron Carbide within the Homogeneity Range.
In: Proc. 10th Int. Symp. Boron, Borides and Related Compounds, Albuquerque, New Mexico,USA Editors: D. Emin, T. Aselage, C. Beckel, A. Switendick (1990); AIP Conference Proceedings 231, p 104.
61. H. Werheit, H. Haupt:
On the Interpretation of the Phonon Spectra of Boron Carbide and β-Rhombohedral Boron.
In: Proc. 10th Int. Symp. Boron, Borides and Related Compounds, Albuquerque, New Mexico,USA Editors: D. Emin, T. Aselage, C. Beckel, A. Switendick (1990); AIP Conference Proceedings 231, p 355.
62. H. Werheit, U. Kuhlmann, T. Tanaka:
Electronic Transport and Optical Properties of YB66.
In: Proc. 10th Int. Symp. Boron, Borides and Related Compounds, Albuquerque, New Mexico,USA Editors: D. Emin, T. Aselage, C. Beckel, A. Switendick (1990); AIP Conference Proceedings 231, p 125.
63. H. Werheit, U. Kuhlmann, F.H. Werheit, G. Krach:
Optical Absorption of Carbon-Doped β-Rhombohedral Boron and Boron Carbide in the Absorption Edge Range.
In: Proc. 10th Int. Symp. Boron, Borides and Related Compounds, Albuquerque, New Mexico, USA, Editors: D. Emin, T. Aselage, C. Beckel, A. Switendick (1990); AIP Conference Proceedings 231, p 144.
64. H. Werheit, U. Kuhlmann,
Optical and Electronic Properties of Boron Carbide in Relation to Its Preparation and Application.
Proceedings of the Internatiuonal Conference on Powder Metallurgy, Kiev 1991.
65. H. Werheit, F. Kristen, R. Franz,
Ambipolar Diffusion of Electron-Hole Pairs in beta-Rhombohedral Boron ;
phys. stat. sol. (b) 172, 405 (1992).
66. U. Kuhlmann, H. Werheit,
On the Microstructure of Boron Carbide;
Solid State Comm. 83, 849 (1992).
67. H. Werheit, M. Laux, U. Kuhlmann, R. Telle,
Optical Interband Transitions of Boron Carbide;
phys. stat. sol, (b) 172, K 81 (1992).
68. U. Kuhlmann, H. Werheit, T. Dose, T. Lundström,
Influence of Interstitially Soluted Iron on Structural, Optical, and Electrical Properties of β-rhombohedral boron;
J. Alloys Comp. 186, 187 (1992).
69. U. Kuhlmann, H. Werheit, K.A. Schwetz,
Distribution of Carbon Atoms on the Boron Carbide Structure Elements;
J. Alloys Comp. 189, 249 (1992).
70. U. Kuhlmann, H. Werheit,
Improved Raman Effect Studies on Boron Carbide (B4.3 C);
phys. stat. sol. (b) 175, 85 (1993).
71. H. Werheit, M. Laux, U. Kuhlmann
Interband and Gap State Related Transitions in β-Rhombohedral Boron,
phys. stat. sol. (b) 176, 415 (1993)
72. H. Werheit, U. Kuhlmann, M. Laux, T. Lundström
Structural and Electronic Properties of Carbon-Doped β-Rhombohedral Boron,
phys. stat. sol. (b) 179, 489 (1993).
73. H. Werheit, U. Kuhlmann,
Electron-Phonon Interaction in B12 Icosahedra,
Solid-State Comm. 88, 421 (1993).
74. H. Werheit, U. Kuhlmann, G. Krach, I. Higashi, T. Lundström, Y. Yu,
Optical and Electronic Properties of the Orthorhombic MgAlB14-Type Borides,
J. Alloys Comp. 202, 269 (1993).
75. H. Werheit, U. Kuhlmann, T. Lundström,
On the Structural Effect of the Insertion of Carbon Atoms in B12 Icosahedra,
In R. Uno and I. Higashi (eds.) Proc. 11th Int. Symp. Boron, Borides and Related Compounds, Tsukuba, 1993, JJAP Series 10, 5 (1994).
76. H. Werheit,
The Electronic Structure of beta-Rhombohedral Boron and the Relation to Its Physical properties,
In R. Uno and I. Higashi (eds.) Proc. 11th Int. Symp. Boron, Borides and Related Compounds, Tsukuba, 1993, JJAP Series 10, 66 (1994).
77. U. Kuhlmann, H. Werheit, J. Haßdenteufel, T. Tanaka,
New Aspects of the Optical and Electronic Properties of YB66,
in R. Uno and I. Higashi (eds.) Proc. 11th Int. Symp. Boron, Borides and Related Compounds, Tsukuba, 1993, JJAP Series 10, 82 (1994).
78. U. Kuhlmann, H. Werheit,
Properties of Boron Carbide Related to the Carbon Distribution in the Unit Cell,
in R. Uno and I. Higashi (eds.) Proc. 11th Int. Symp. Boron, Borides and Related Compounds, Tsukuba, 1993, JJAP Series 10, 84 (1994).
79. H. Werheit, U. Kuhlmann, M. Laux, R. Telle,
Structural and Optical properties of Si-Doped Boron Carbide,
in R. Uno and I. Higashi (eds.) Proc. 11th Int. Symp. Boron, Borides and Related Compounds, Tsukuba, 1993, JJAP Series 10, 86 (1994).
80. U. Kuhlmann, H. Werheit, T. Lundström, W. Robers,
Some Properties of Amorphous Boron,
in R. Uno and I. Higashi (eds.) Proc. 11th Int. Symp. Boron, Borides and Related Compounds, Tsukuba, 1993, JJAP Series 10, 88 (1994).
81. H. Werheit, U. Kuhlmann, M. Laux, T. Lundström,
C-Doped β-Rhombohedral Boron, Structure and Optical Properties,
in R. Uno and I. Higashi (eds.) Proc. 11th Int. Symp. Boron, Borides and Related Compounds, Tsukuba, 1993, JJAP Series 10, 92 (1994).
82. U. Kuhlmann, H. Werheit,
Raman Effect of boron Carbide (B4.3C to B10.37C),
in R. Uno and I. Higashi (eds.) Proc. 11th Int. Symp. Boron, Borides and Related Compounds, Tsukuba, 1993, JJAP Series 10, 94 (1994).
83. H. Werheit, G. Krach, U. Kuhlmann, I. Higashi, V.N. Gurin, M.M. Korsukova,
Optical Properties of Some α-AlB12 Representatives,
in R. Uno and I. Higashi (eds.) Proc. 11th Int. Symp. Boron, Borides and Related Compounds, Tsukuba, 1993, JJAP Series 10, 96 (1994).
84. H. Werheit, G. Krach, U. Kuhlmann, I. Higashi, T. Lundström, Y. Yu,
Some Properties of Orthorhombic Borides of MgAlB14 Type,
in R. Uno and I. Higashi (eds.) Proc. 11th Int. Symp. Boron, Borides and Related Compounds, Tsukuba, 1993, JJAP Series 10, 98 (1994).
85. U. Kuhlmann, H. Werheit, T. Lundström, W. Robers,
Optical Properties of Amorphous Boron,
J. Phys. Chem. Solids 55, 579 (1994).
86. H. Werheit, U. Kuhlmann, T. Lundström,
On the Insertion of Carbon Atoms in B12 Icosahedra and the Structural Anisotropy of β-Rhombohedral Boron and Boron Carbide,
J. Alloys Comp. 204, 197 (1994).
87. U. Kuhlmann, H. Werheit,
Raman Effect of Boron Carbide (B4.3C to B10.37C),
J. Alloys Comp. 205, 87 (1994).
88. H. Werheit, U. Kuhlmann, M. Laux, R. Telle
Solid Solutions of Silicon in Boron-Carbide-Type Crystals,
J. Alloys Comp. 209, 181 (1994).
89. H. Werheit,
Boron-Rich Solids: A Chance for High-Efficiency High-Temperature Thermoelectric Energy Conversion,
Proc. EMRS Spring Meeting 1994, Materials Science and Engineering (1994) Materials Science and Engineering B 29, 228 (1995).
90. U. Kuhlmann, H. Werheit, J. Pelloth, W. Keune, T. Lundström,
Ionisation of Interstitial Iron Atoms in β-Rhombohedral Boron,
phys. stat. sol. (b) 187, 43 (1995).
91. H. Werheit, F. Kummer,
Soliton Propagation and Diffusion of Optically Excited Carriers in beta-Rhombohedral Boron,
J. Phys. Condensed Matter 40, 7851 (1995).
92. K. Kimura, H. Matsuda, R. Tamura, M. Fujimori, R. Schmechel, H. Werheit,
Interrelation between icosahedral aluminium-based quasicrystals and boron-rich solids,
Proc. 5th Int. Conf. Quasicrystals Avignon. 22 - 26 May 1995
93. H. Werheit, R. Schmechel, K. Kimura, R. Tamura, T. Lundström
On the Electronic Properties of Icosahedral Quasicrystals;
Solid State Communications 97, 103 (1996).
94. H. Werheit, U. Kuhlmann, T. Lundström
Carbon in β-Rhombohedral Boron,
In A. Borghesi, U.M. Gösele, J. Vanhellemont, A.M. Gué, M Djafari-Rouhani (eds.) C,H,N and O in Si and Other Element Semiconductors (1995), EMRS Symp. Proc. 56, North Holland, Amsterdam, Mat. Science and Engineer. B 36, 204 (1996).
95. H. Werheit, U. Kuhlmann, K. Shirai, Y. Kumashiro
Optical Properties of B12P2;
J. Alloys Comp. 233, 121 (1996).
96. R. Schmechel, H. Werheit
On the dynamical conductivity in icosahedral boron-rich solids,
J. Phys.: Condens. Matter 8, 7263 (1996).
97. H. Werheit and F. Kummer
Soliton Type Charge Transport in β-rhombohedral Boron
12th Int. Symp. Boron, Borides and Related Compounds, Baden, Austria, Aug. 25 - 30, 1996.
98. H. Werheit, R. Schmechel, T. Lundström, T. Tanaka and Y. Ishizawa
Structure-Modulated Reflectivity Spectra of Icosahedral Boron-Rich Solids,
12th Int. Symp. Boron, Borides and Related Compounds, Baden, Austria, Aug. 25 - 30, 1996.
99. U. Kuhlmann, H. Werheit, T. Tanaka and Y. Ishizawa
AFM Pictures of Cleaved YB66 Surfaces
12th Int. Symp. Boron, Borides and Related Compounds, Baden, Austria, Aug. 25 - 30.,1996
100. Schmechel, H. Werheit, V. Kueffel and T. Lundström
On the Electronic Properties of β-Rhombohedral B:V and B:Co Compounds,
12th Int. Symp. Boron, Borides and Related Compounds, Baden, Austria, Aug. 25 - 30, 1996
101. U. Kuhlmann, H. Werheit, J. Pelloth, W. Keune and T. Lundström
Mössbauer Investigations on Interstitial Fe Atoms in β-Rhombohedral Boron,
12th Int. Symp. Boron, Borides and Related Compounds, Baden, Austria, Aug. 25 - 30, 1996.
102. H. Werheit, R. Schmechel, and K. P. Lorse
Interaction of optically excited carriers with intraicosahedral phonons;
Journal of Solid State Chemistry 133, 125 (1997).
103. H. Werheit and R. Schmechel
The complete optical spectrum of β-rhombohedral boron;
Journal of Solid State Chemistry 133, 129 (1997).
104. H. Werheit, C. Janowitz, R. Schmechel, T. Tanaka, and Y. Ishizawa
Interband critical points of some icosahedral boron-rich solids;
Journal of Solid State Chemistry 133, 132 (1997).
105. H. Werheit, U. Kuhlmann, K. Shirai and Y. Kumashiro
Interband transitions and phonon spectra of Si-doped B12P2;
Journal of Solid-State Chemistry 133, 140 (1997).
106. H. Werheit, R. Schmechel, K. Kimura, R. Tamura, and T. Lundström
Evidence of the relationship of the electronic properties of icosahedral boron-rich solids and icosahedral quasicrystals
Journal of Solid State Chemistry 133, 160 (1997).
107. R. Schmechel, H. Werheit, K. Robberding, T. Lundström, and H. Bolmgren,
IR active phonon spectra of B-C-Al compounds with boron carbide structure;
Journal of Solid State Chemistry 133, 254 (1997).
108 H. Werheit and U. Kuhlmann
FTIR and FT Raman Spectra of B6O;
Journal of Solid State Chemistry 133, 260 (1997).
109. R. Schmechel, H. Werheit, and Yu. B. Paderno,
FT Raman Spectroscopy of some metal hexaborides
Journal of Solid State Chemistry 133, 264 (1997).
110. R. Schmechel and H. Werheit
Evidence of the superposition of Drude type and hopping type transport in boron-rich solids;
Journal of Solid State Chemistry 133, 335 (1997).
111. K. Kimura, M. Takeda, M. Fujimori, R. Tamura, H. Matsuda, R. Schmechel,
and H. Werheit
A unified picture for icosahedral clusters solids in boron based and alumninium based compounds,
Journal of Solid State Chemistry 133, 302 (1997).
112. H. Werheit, R. Schmechel, V. Kueffel, T. Lundström
On the electronic properties of β- rhombohedral boron interstitially doped with 3d transition metal atoms,
Journal of Alloys and Compounds 262-263, 372 (1997).
113. R. Schmechel, H. Werheit, V. Kueffel, and T. Lundström
Electronic transport in p-type and n-type β-rhombohedral boron,
in Proceedings of XVI International Conference on Thermoelectrics 1997, Dresden, August 26 – 29, 1997, IEEE Catalog Number 97 TH 8291, p. 219.
114. H. Werheit, R. Schmechel
Boron,
in Landolt-Börnstein, Numerical Data and functional relationships in Science and Technology Group III, Vol. 41C, Springer, Berlin, 1998, p. 3.
115. R. Schmechel, H. Werheit
Dynamical Transport in Icosahedral Boron-Rich Solids,
J. Mat. Proc. and Manufact. 6, 329 (1998).
116. H. Werheit
On the Electronic Properties of icosahedral boron-rich solids,
in Materials Science of Carbides, Nitrides and Borides, (Eds. Y.G. Gogotsi and R.A. Andriewski) Kluwer, Dordrecht, 1999, p. 65.
117. H. Werheit, R. Schmechel, U. Kuhlmann, T.U. Kampen, W. Mönch, A. Rau
On the reliability of the Raman spectra of boron-rich solids,
J. Alloys Comp. 291, 28 (1999).
118. R. Schmechel, H. Werheit
Correlation between Structural Defects and Electronic Properties of Icosahedral Boron-Rich Solids.
J. Phys: Condens. Matter 11, 6803 (1999).
119. R. Schmechel, H. Werheit
Structural defects of icosahedral boron-rich solids and their correlation with the electronic properties,
Proc. Int. Symp. Boron, Borides and Related Comp., Sept. 1999, Dinard, France, J.F. Halet, J. Bauer Eds., J. Solid State Chem. 154, 61 (2000).
120. H. Werheit, T. Au, R. Schmechel, S.O. Shalamberidze, G.I. Kalandadze,
A.M. Eristavi
IR active phonons and structure elements of isotope-enriched boron carbide,
Proc. Int. Symp. Boron, Borides and Related Comp., Sept. 1999, Dinard, France, J.F. Halet, J. Bauer Eds. J. Solid State Chem. 154, 79 (2000).
121. H. Werheit, T. Au, R. Schmechel, Yu.B. Paderno, E.S.Konovalova
Interband transitions, IR active phonons and plasma vibrations of some metal hexaborides,
Proc. Int. Symp. Boron, Borides and Related Comp., Sept. 1999, Dinard, France, J.F. Halet, J. Bauer Eds. J. Solid State Chem.154, 87 (2000).
122. H. Werheit, R. Schmechel, F.D. Meyer, H. Hillebrecht
Interband Transitions and optical phonons of B48Al3C2.
Int. Symp. Boron, Borides and Related Comp., Sept. 1999, Dinard, France, J.F. Halet, J. Bauer Eds. J. Solid State Chem. 154, 75 (2000).
123. R. Schmechel, H. Werheit
Photoluminescence of high-purity β-rhombohedral boron and of boron carbide,
Proc. Int. Symp. Boron, Borides and Related Comp., Sept. 1999, Dinard, France, J.F. Halet, J. Bauer Eds. , J. Solid State Chem. 154, 68 (2000).
124. H. Werheit, M. Schmidt, R. Schmechel, T. Lundström
Modulated photoconductivity of high-purity and C-doped β-rhombohedral boron,
Proc. Int. Symp. Boron, Borides and Related Comp., Sept. 1999, Dinard, France, J.F. Halet, J. Bauer Eds., J. Solid State Chem.154, 93 (2000).
125. H. Werheit
Boron and Boron-Rich Compounds
in Y. Kumashiro (ed.), Electric Refractory Materials; Marcel Dekker Inc., New York, 2000, p. 589 - 653.
126. H. Werheit
Boron Compounds,
in Landolt-Börnstein, Numerical Data and functional relationships in Science and Technology Group III, Vol. 41D, O. Madelung ed., Springer, Berlin, 2000, p. 1- 491.
127. K.A. Schwetz, H. Werheit, E. Nold
Sintered and Monocrystalline Black and Green Silicon Carbide – Chemical Compositions and Optical Properties,
cfi/Ber. DKG 80 (2003) No. 12, E 37 – E 44.
128. H. Werheit, B. Wehmöller
New peculiarities of the conductivity mechanism in β-rhombohedral boron,
J. Solid State Chem. 177 (2004) 556 – 565.
129. R. Schmechel , H. Werheit, T.U. Kampen, W. Mönch
Photoluminescence of boron carbide,
J. Solid State Chem. 177 (2004) 566 –568.
130. H. Werheit, A. Leithe-Jasper, T. Tanaka, H.W. Rotter, K.A. Schwetz
Some Properties of Single-Crystal Boron Carbide,
J. Solid State Chem. 177 (2004) 575 – 579.
140. H. Werheit, A. Moldenhauer
Nonohmic Electrical Conductivity of beta-rhombohedral Boron in High electric Fields,
J. Solid State Chem. 177 (2004) 586-591.
141. H. Werheit, H.W. Rotter, F.D. Meyer, H. Hillebrecht, S.O. Shalamberidze,
T.G. Abzianidze and G.G. Esadze
FT-Raman Spectra of Isotope-Enriched Boron Carbide,
J. Solid State Chem. 177 (2004) 569 – 574.
142. H. Werheit, K.A. Schwetz
Comparative Optical Investigations of Sintered and Monocrystalline Black and Green Silicon Carbide (SiC),
J. Solid State Chem. 177 (2004) 580 – 585.
143. H. Werheit, Yu. Paderno, V. Filippov, V. Paderno, U. Schwarz, A. Pietraszko
Structural distortions in ZrB12 and LuB12 single crystals,
Proc. 3rd Int. Conf. Materials and Coatings for Extreme Performances, Sept. 13. – 17, 2004, Katsiveli, Crimea, Ukraine.
144. Yu.B. Paderno, V.B. Filippov, V.N. Paderno, A. Pietraszko, O. Zogal,
N.Yu. Shitsevalova, H. Werheit,
The Role of Crystal and Electron Structures in Cubic Rare Earth Borides Properties Formation,
Proc. Int. Conf. Modern Materials Science: Achievements and Problems, Kiev, Ukraine, Sept. 26-30, 2005, V.V. Skorokhod, ed., p. 67.
145. H. Werheit
Charge Transport of Semiconducting Icosahedral Boron Structures,
Proc. Int. Conf. Modern Materials Science: Achievements and Problems, Kiev, Ukraine, Sept. 26-30, 2005, V.V. Skorokhod, ed., p. 855.
146. H. Werheit, Yu. Paderno, V. Filippov, V. Paderno, A. Pietraszko, M. Armbrüster,
U. Schwarz
Peculiarities in the Raman spectra of ZrB12 and LuB12 single crystals,
J. Solid State Chem. 179 (2006) 2761-2767
(Special Issue, Proc. 15th Int. Symp. Boron, Borides and Rel. Mat., Aug. 2005, Hamburg).
147. H. Werheit, A. Moldenhauer
On the Diffusion of Free Carriers in β-Rhombohedral Boron.
J. Solid State Chem. 179 (2006) 2775-2778
(Special Issue, Proc. 15th Int. Symp. Boron, Borides and Rel. Mat., Aug. 2005, Hamburg).
148. H. Werheit
Thermoelectric properties of boron-rich solids and their possibilities of technical application,
Proc. 25th Int. Conf. on Thermoelectrics (Vienna, Austria, Aug. 2006) ed. P. Rogl (Piscataway, NJ: IEEE, Catalog Nr. 06TH8931) p. 159 - 163.
149. H. Werheit
On excitons and other gap states in boron carbide,
J. Phys.: Condens. Matter 18 (2006) 10655-10662
150. H. Werheit
Are there bipolarons in icosahedral boron-rich solids?,
J. Phys.: Condens. Matter 19 (2007) 186207
151. H. Werheit
Present Knowledge of Electronic Properties and Charge Transport of Icosahedral Boron-Rich Solids,
J. Phys.: Conf. Series 176 (2009) 012019
152. H. Werheit and F. Kummer
Fractional Photoconductivity Glow Curves of β-Rhombohedral Boron,
J. Phys.: Conf. Series 176 (2009) 012020
153. H. Werheit, U. Kuhlmann, B. Herstell, W. Winkelbauer
Experimental Method for Reliable Seebeck Coefficient Measurements
J. Phys.: Conf. Series 176 (2009) 012037
154. H Werheit
Experimentally Founded Charge Transport Model for Icosahedral Boron-Rich Solids
NATO ARW, Boron-Rich Solids, Orlando, Florida, Dec. 14 - 18, 2009
Boron-rich Solids - Sensors. Ultra High Temperature Ceramics. Armor, Eds. N. Orlovskaya and M. Lugovy, Springer, Berlin, p. 45
155. H Werheit, V Filipov
Raman Effect in boron and boron-rich compounds
NATO ARW, Boron-Rich Solids, Orlando, Florida, Dec. 14 - 18, 2009
Boron-rich Solids - Sensors. Ultra High Temperature Ceramics. Armor, Eds. N. Orlovskaya and M. Lugovy, Springer, Berlin, p. 29
156. H Werheit, V Filipov, U Schwarz, M Armbrüster, A. Leithe-Jasper, T. Tanaka,
S.O. Shalamberidze
On Surface Raman scattering and luminescence radiation of boron carbide,
J. Phys.: Condens. Matter 22 (2010) 045401
157. H Werheit, V Filipov, U Kuhlmann, U Schwarz, M Armbrüster, A Leithe-Jasper,
T Tanaka, I Higashi, T Lundström, V N Gurin and M M Korsukova
Raman effect in icosahedral boron-rich solids
Sci. Technol. Adv. Mater. 11 (2010) 023001
158. H. Werheit, U Kuhlmann, H W Rotter and S O Shalamberidze
Isotopic effects on the phonon modes in boron carbide
J. Phys.: Condens. Matter 22 (2010) 395401
159. H. Werheit, V Filipov, K Shirai, H. Dekura, N Shitsevalova, U. Schwarz,
M Armbrüster
Raman scattering and isotopic phonon effects in dodecaborides
J. Phys.: Condens. Matter 23 (2011) 065403
160. H Werheit ,
On the exceptional negative Seebeck effect in 3d-doped β-rhombohedral boron
Solid State Sciences 13 (2011) 1786 - 1796
161. H. Werheit and U. Kuhlmann
Superconductivity in boron carbide? Clarification by low-temperature MIR/FIR spectra
J. Phys.: Condens. Matter 23 (2011) 435501
162. H. Werheit
Isotopic phonon effects in boron-rich solids (invited; 17th ISBB, Istanbul, 2011)
Solid State Sciences 14 (2012) 1559-1566
163. H. Werheit, V. Filipov, U. Schwarz and M. Armbrüster
Excitation-dependent Raman spectra in hexaborides
Solid State Sciences 14 (2012) 1567-1571
164. S. Hoffmann and H. Werheit
Phase transition in β-rhombohedral boron at 550 K
Solid State Sciences 14 (2012) 1572-157
165. H. Werheit, V. Filipov, U. Kuhlmann, U. Schwarz, M. Armbrüster, M. Antadze
Isotopic phonon effects in β-rhombohedral boron - non-statistical isotope distribution
J. Phys.: Condens. Matter 24 (2012) 175401
166. H. Werheit, V. Filipov, N Shitsevalova , M. Armbrüster, U. Schwarz
Isotopic phonon effects in LaB6 – LaB6 does not possess cubic symmetry
and shows a non-random isotope distribution
J. Phys.: Condens.. Matter 24 (2012) 385405
167. H. Werheit, U. Kuhlmann
Is the established structure of α-rhombohedral boron correct? - Comparative study of IR-active phonons with B6O, B4.33C andd β-rhombohedral boron.
J. Phys.: Condens. Matter 24 (2012) 305401
168. H. Werheit, S. Shalamberidze
Advanced microstructure of boron carbide
J. Phys.: Condens. Matter 24 (2012) 385406
169. H Werheit, V Filipov, N Shitsevalova, M Armbrüster, U Schwarz, A. Ievdokimova,
V Muratov, V N Gurin and M M Korsukova
Raman scattering in rare earths tetraborides
Solid State Sciences 31 (2014) 24-32
170. Helmut Werheit and Guido Gerlach
Dynamical conductivity of boron carbide: heavily damped plasma vibrations
J. Phys.: Condens. Matter 26 (2014) 425801
171. Helmut Werheit
On microstructure and electronic properties of boron carbide
Advances in Ceramic Armor X: A Collection of Papers Presented at the 38th International Conference on Advanced Ceramics and Composites January 27–31, 2014, Volume 35
Ceramic Engineering and Science Proceedings (Vol. 35), Editor. Jerry C. LaSalvia .
in: Advances in Ceramic Armor X, Volume 35, Issue 4 (2015) p. 87-102, Wiley-VCH
172. Helmut Werheit
Van Hove singularities of some icosahedral boron-rich solids by differential reflectivity spectra
Solid State Sciences 47 (2015) 13
173. H. Werheit , V. Filipov , U. Kuhlmann, T. Dose, T. Lundström.
Fe-doped b-Rhombohedral boron: Structural changes at the p-type/ntype
transition
Solid State Sciences, 47 (2015) 7
174. H. Werheit
Structural Defects: Essential Elements of Icosahedral Boron-Rich Solids
2015 Sustainable Industrial Processing Summit. Vol. 8: Composite, Quasi-crystals and Nanomaterials, Editors F. Kongoli, M. Pech-Canul, A. Kalemptas, H. Werheit, FLOGEN 2015 p. 159
175. H. Werheit, S. Hoffmann, G. Gerlach, A. Leithe-Jasper, T. Tanaka
Phase Transition and Isotope-Induced Phonon Softerning in natB4.3C Boron Carbide at Moderate Temperatures
2015 Sustainable Industrial Processing Summit. Vol. 8: Composite, Quasi-crystals and Nanomaterials, Editors F. Kongoli, M. Pech-Canul, A. Kalemptas, H. Werheit, FLOGEN 2015 p. 183
176. H. Werheit, V. Filipov, and N. Shitsevalova
Confined Raman Scattering – Easy Access to the Surface Phonons of Specific Crystalline Solids
Z. Anorg. Allg. Chem. 641 (2015) 1835
177. H. Werheit
Boron carbide: Consistency of components, lattice parameters, fine structure and chemical composition makes the complex structure reasonable
Solid State Sciences 60 (2016) 45
178. A. Hushur, M. H Manghnani, H. Werheit, P. Dera and Q. Williams,
High-pressure phase transition makes B4.3C boron carbide a wide-gap semiconductor
J. Phys.: Condens. Matter 28 (2016) 045403
179. H. Werheit
Comment on: “Is Linear Group X–Y–Z in Boron Carbide the Weakest Link in the Structure?” by S. V. Konovalikhin and V. I. Ponomarev, (Russ. J. Phys. Chem. A 89 (10), 1850 (2015))
Russian J. Phys. Chem. 90 (2016) 1501
180. H. Werheit
Comment on “New Ground-State Crystal Structure of Elemental Boron”
Phys. Rev. Lett. 118 (2017) 089601
181. H. Werheit, M. H. Manghnani, U. Kuhlmann, A. Hushur, S. Shalamberidze
Mode Grüneisen Parameters of boron carbide
Solid State Sciences 72 (2017) 80
182. H Werheit, K Flachbart, G Pristáš, D Lotnyk, V Filipov, U Kuhlmann, N Shitsevalova
and T Lundström
Influence of dopants, particularly carbon, on β-rhombohedral boron
Semicond. Sci. Technol. 32 (2017) 095015
183. H. Werheit
Assignment of the electronic transitions in B4.3C boron carbide implies a specifically distorted crystal structure
Solid State Sciences 86 (2018) 38
184. H. Werheit
Comment on Structural Stability of Boron Carbide under Pressure Proven by Spectroscopic Studies up to 73 GPa (Z. Anorg. Allg. Chem. 643,
1357 (2017)) by I. Chuvashova, B. Gasharova, Y.-L. Mathis, L. Dubrovinsky, and N. Dubrovinskaia
J. Inorganic and General Chemistry 644 (2018) 353
185. H. Werheit
Systematic error in conventionally measured Raman spectra of boron carbide — A general issue in solid state Raman spectroscopy
Rev. Sci. Instrum. 90 (2019) 043114
186. H. Werheit, M. H. Manghnani, A. Hushur
Phonon peculiarities at the high-pressure phase transition of B4.3C boron carbide
Solid State Sciences 97 (2019) 105978
187. G. Pristás, H. Werheit, S. Gabáni, S. Shalamberidze, K. Flachbart
Low temperature specific heat anomaly with boson peak in isotope-enriched boron carbides B4⋅3C – B10C
Solid State Sciences 101 (2020) 106140
188. H. Werheit
Comment on Understanding first order Raman spectra of boron carbides across the homogeneity range by Roma et al. (Phys. Rev. Mat. 5, 063601 (2021)
Phys. Rev. Materials 6, 016601 (2022)
189. H. Werheit, B. Herstell, W. Winkelbauer, G. Pristas, S..Gabani, K. Flachbart,
S. Shalamberidze
Electrical conductivity of boron carbide from 5 to 2100 K in the whole
homogeneity range
Solid State Sciences 132 (2022) 106987
190. H. Werheit, B. Herstell, W. Winkelbauer, G. Pristas, S..Gabani, K. Flachbart,
S. Shalamberidze
Corrigendum to “Electrical conductivity of boron carbide from ~5 to
~2100 K in the whole homogeneity range [Solid State Sci. 132
(2022) 106987]”
Solid State Sciences 134 (2022) 107055
191. H. Werheit
Comment on “Raman spectra characterization of boron carbide using
first-principles calculations” by T. Sahu, A. Bhattacharyya, A. N. Gandi
Physica B: Condensed Matter 651 (2023) 414604
192. G. Amulele, M. H. Manghnani, H. Werheit, A. W. Lanati, S. M. Clark
Electrical conductivity of B~4.3C boron carbide up to 9 GPa and 1273 K
Solid State Sciences 140 (2023) 107185
193. H. Werheit
Phase Transitions in Boron Carbide
Materials 16 (2023) 6734
https://doi.org/10.3390/ma16206734
Scholarly Community Encyclopedia: https://encyclopedia.pub/entry/50723