The Physics of Selenium and Tellurium

1. Front Matter

   Pages I-X

   PDF

2. Bands and Bonds in Se and Te

   1. Front Matter

      Pages 1-1

      PDF

   2. The Electronic Structure of Crystalline Phases of Se and Te

      • J. D. Joannopoulos

      Pages 2-11

   3. Charge and Momentum Density, and Compton Profile of Se and Te

      • P. Krusius

      Pages 12-19

   4. Self-consistent Ground State of Trigonal Tellurium

      • J. v. Boehm, H. Isomäki, P. Krusius, T. Stubb

      Pages 20-22

   5. Mössbauer Study of Tellurium at High Pressure

      • U. Ladewig, K. Frank, G. Kaindl, B. Perscheid

      Pages 23-26

   6. Electronic Structure of Trigonal and Amorphous Se and Te and the Non-Empirical Calculation of Structural Properties

      • David W. Bullett

      Pages 27-30

   7. Dielectric Matrix Calculations in Helical Chain Semiconductors

      • Fabrizio Nizzoli

      Pages 31-33

3. Lattice Dynamics of Trigonal Se and Te

   1. Front Matter

      Pages 35-35

      PDF

   2. Homology of Phonons in Se and Te

      • W. Richter

      Pages 36-46

   3. Lattice Dynamics of Trigonal Selenium and Tellurium — State of the Art

      • H. Wendel

      Pages 47-59

   4. Phonon Dispersion Calculations for Trigonal Selenium

      • F. Y. Hansen, H. L. McMurry

      Pages 60-63

   5. Comparison of the Phonon Density of States of Trigonal, Vitreous, and Red Amorphous Selenium

      • F. Gompf

      Pages 64-67

   6. Specific Heat and Thermal Conductivity of Trigonal and Vitreous Selenium in the Temperature Range 3–300 K

      • M. Meißner, D. Wobig

      Pages 68-73

   7. Low Temperature Specific Heat and Elastic Constants of Trigonal Selenium

      • M. Meißner, J. Mimkes

      Pages 74-80

   8. Surface Lattice Dynamics of Trigonal Se and Te: Mean Square Displacement Spectra in the Long-Wavelength Limit

      • F. Nizzoli, G. Santoro, V. Bortolani

      Pages 81-83

4. Bandstructure in the Neighbourhood of the Gap of Trigonal Se and Te

   1. Front Matter

      Pages 85-85

      PDF

   2. Optical Activity, De Haas-Van Alphen-Oscillations and Conduction Band Parameters of Tellurium

      • M. Lutz

      Pages 86-95

   3. Optical Properties of Tellurium Under High Pressure

      • Yu. V. Kosichkin

      Pages 96-109

   4. Electron Cyclotron Resonance in Te at Very High Magnetic Fields

      • N. Miura, G. Kido, S. Chikazumi

      Pages 110-112

Conferences on the Physics of Selenium and Tellurium were held in 1964 in London, 1967 in Montreal, and eight years ago, 1971, in Pont-a-Mousson. The last conference was noteworthy because of two facts: For crystalline Te and Se a high level of results was achieved and, further, it was possible to outline the focal points for continuing research work. These points were mainly to explore. the electronic structure of trigonal Se and Te and of the hypothetic~l cubic limit of these materials. To im­ plement such study, progress in band structure calculations was necessary. In addition, a consistent analytical description of the bands near the va­ lence band conduction band gap was required with the aim to understand the semiconducting properties, mainly magnetotransport and magnetooptical ef­ fects of band electrons and of impurities. Further questions concerned the influence of defects, such as dislocations, on transport properties and, finally, a concluding description of lattice dynamics of trigonal Se and Te, based on theoretical and experimental work, such as neutron diffraction and optical measurements. Besides the listing of this future research program it became obvious that more detailed work on the amorphous state of solids and liquids was necessary in order to improve our knowledge about their crystalline proper­ ties, growing conditions. and all problems of chemical bonds.

• Selen
• Tellur
• band structure
• crystal
• diffraction
• dynamics
• electron
• electrons
• lattice dynamics
• neutron
• neutron diffraction
• physics

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