Volume 23, Issue 4

15 February 1981

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ARTICLES

Theory of the temperature dependence of the direct gap of germanium

P. B. Allen and M. Cardona

Phys. Rev. B 23, 1495 (1981) - Published 15 February, 1981

Short-range order in theoretical models of binary metallic glass alloys

D. S. Boudreaux and H. J. Frost

Phys. Rev. B 23, 1506 (1981) - Published 15 February, 1981

Impurity effect on the Fröhlich conductivity in Nb ${Se}_{3}$

J. W. Brill, N. P. Ong, J. C. Eckert, J. W. Savage, S. K. Khanna, and R. B. Somoano

Phys. Rev. B 23, 1517 (1981) - Published 15 February, 1981

Large- $r$ form for the potential due to an impurity ion in a medium with spatially variable dielectric constant

K. R. Brownstein

Phys. Rev. B 23, 1527 (1981) - Published 15 February, 1981

Raman investigation of the charge-density-wave mixed-crystal system $1 T - T a S_{2 - x} {Se}_{x}$

J. R. Duffey and R. D. Kirby

Phys. Rev. B 23, 1534 (1981) - Published 15 February, 1981

Screening near a metal surface: Plasmon effects

Adolfo G. Eguiluz

Phys. Rev. B 23, 1542 (1981) - Published 15 February, 1981

Electronic structure of palladium (100)

J. G. Gay, J. R. Smith, F. J. Arlinghaus, and T. W. Capehart

Phys. Rev. B 23, 1559 (1981) - Published 15 February, 1981

Metal-insulator transition and charge-density wave in ${Fe}_{0.25}$ ${Nb}_{0.75}$ ${Se}_{3}$

S. J. Hillenius, R. V. Coleman, R. M. Fleming, and R. J. Cava

Phys. Rev. B 23, 1567 (1981) - Published 15 February, 1981

Equilibrium properties and the phase transition of grey and white tin

J. Ihm and Marvin L. Cohen

Phys. Rev. B 23, 1576 (1981) - Published 15 February, 1981

Stoichiometry-dependent conductivity in framework ionic conductors

Solomon H. Jacobson, Mark A. Ratner, and A. Nitzan

Phys. Rev. B 23, 1580 (1981) - Published 15 February, 1981

High-energy-electron-loss spectroscopy of W $O_{3}$ (100) and ${Na}_{x}$ W $O_{3}$ (100) single-crystal surfaces

M. A. Langell and S. L. Bernasek

Phys. Rev. B 23, 1584 (1981) - Published 15 February, 1981

Lattice dynamics and low-frequency excitations of transition-metal hydrides: $Nb D_{x}$ , $Nb H_{x}$ , and $Ta D_{x}$

S. M. Shapiro, D. Richter, Y. Noda, and H. Birnbaum

Phys. Rev. B 23, 1594 (1981) - Published 15 February, 1981

Observation of low-energy excitations in NbD: A simple lattice-dynamical model

A. Magerl, J. M. Rowe, and D. Richter

Phys. Rev. B 23, 1605 (1981) - Published 15 February, 1981

Diffusion in a pure, high-vacancy-content crystal

R. A. McKee

Phys. Rev. B 23, 1609 (1981) - Published 15 February, 1981

Local electronic structure of amorphous metal alloys using cluster models. Evidence for specific metalloid-metal interactions

R. P. Messmer

Phys. Rev. B 23, 1616 (1981) - Published 15 February, 1981

Calculation of the multipole potential from an arbitrary localized charge distribution

G. S. Painter

Phys. Rev. B 23, 1624 (1981) - Published 15 February, 1981

Lattice dynamics of metal hydrides

Hamid A. Rafizadeh

Phys. Rev. B 23, 1628 (1981) - Published 15 February, 1981

Heats of formation of alloys of $s - p$ electronic materials

M. Schlüter and C. M. Varma

Phys. Rev. B 23, 1633 (1981) - Published 15 February, 1981

Simple considerations on the surface tension and the critical temperature of the electron-hole liquids

K. S. Singwi and M. P. Tosi

Phys. Rev. B 23, 1640 (1981) - Published 15 February, 1981

Generalized Ewald-potential problem for the diamond lattice

Frank Szmulowicz

Phys. Rev. B 23, 1646 (1981) - Published 15 February, 1981

Self-consistent non-muffin-tin augmented-plane-wave calculation of the band structure of silicon

Frank Szmulowicz

Phys. Rev. B 23, 1652 (1981) - Published 15 February, 1981

Hypersonic dispersion in tetragonal BaTi $O_{3}$ measured by double-axis Brillouin spectroscopy and determination of dielectric constant

Yasunori Tominaga, Masayuki Udagawa, Sukekatsu Ushioda, Terutaro Nakamura, and Hisako Urabe

Phys. Rev. B 23, 1664 (1981) - Published 15 February, 1981

Electron-spin-resonance study of complex interstitial halogen $H_{D}$ -type defects in KCI doped with divalent cations

Willy Van Puymbroeck and Dirk Schoemaker

Phys. Rev. B 23, 1670 (1981) - Published 15 February, 1981

Self-consistent linearized-augmented-plane-wave-method determination of electronic structure and surface states on Al(111)

Ding-sheng Wang, A. J. Freeman, H. Krakauer, and M. Posternak

Phys. Rev. B 23, 1685 (1981) - Published 15 February, 1981

Electronic structure of metal hydrides. IV. $Ti H_{x}$ , $Zr H_{x}$ , $Hf H_{x}$ , and the fcc-fct lattice distortion

J. H. Weaver, D. J. Peterman, D. T. Peterson, and A. Franciosi

Phys. Rev. B 23, 1692 (1981) - Published 15 February, 1981

Electron-stimulated desorption studies of O on W(110): Discussion on the excitation mechanism and the binding sites of the $O^{+}$ -yielding species

Shang-Lin Weng

Phys. Rev. B 23, 1699 (1981) - Published 15 February, 1981

Symmetry of equation for localized states in solids

J. Zak

Phys. Rev. B 23, 1704 (1981) - Published 15 February, 1981

Stimulated luminescence of KI single crystals

William L. Emkey, Andrew B. Romberger, and Wesley J. Van Sciver

Phys. Rev. B 23, 1709 (1981) - Published 15 February, 1981

Random walks on finite lattices with traps. II. The case of a partially absorbing trap

Michael D. Hatlee and John J. Kozak

Phys. Rev. B 23, 1713 (1981) - Published 15 February, 1981

Quantum diffusion and divergent fluctuations in disordered metals

Pierre F. Maldague

Phys. Rev. B 23, 1719 (1981) - Published 15 February, 1981

Electrostatics for periodic films of atoms

Hendrik J. Monkhorst and William A. Schwalm

Phys. Rev. B 23, 1729 (1981) - Published 15 February, 1981

Raman scattering spectra in mixed ${Ga}_{1 - x} {Al}_{x} As (Sb)$ crystals

D. N. Talwar, M. Vandevyver, and M. Zigone

Phys. Rev. B 23, 1743 (1981) - Published 15 February, 1981

Layered solids. New crystalline materials

J. Koehler

Phys. Rev. B 23, 1753 (1981) - Published 15 February, 1981

Polarized low-energy-electron diffraction from W(100)

G.-C. Wang, R. J. Celotta, and D. T. Pierce

Phys. Rev. B 23, 1761 (1981) - Published 15 February, 1981

Diffusion of lead in cadmium

Donald C. Yeh, L. A. Acuna, and H. B. Huntington

Phys. Rev. B 23, 1771 (1981) - Published 15 February, 1981

Rare-gas monolayers on graphite: Study of anharmonic effects

Bal K. Agrawal

Phys. Rev. B 23, 1778 (1981) - Published 15 February, 1981

Exact solution of the Kahana equation for a positron in an electron gas

E. Boroński, Z. Szotek, and H. Stachowiak

Phys. Rev. B 23, 1785 (1981) - Published 15 February, 1981

Theory of bipolarons and bipolaronic bands

A. Alexandrov and J. Ranninger

Phys. Rev. B 23, 1796 (1981) - Published 15 February, 1981

Trapping of nitrogen in Mo due to defects generated by 50-400-keV $H^{+}$ and ${He}^{+}$ ions

A. Anttila, J. Hirvonen, and M. Hautala

Phys. Rev. B 23, 1802 (1981) - Published 15 February, 1981

Magnetic and transport properties of granular cobalt films

S. Barzilai, Y. Goldstein, I. Balberg, and J. S. Helman

Phys. Rev. B 23, 1809 (1981) - Published 15 February, 1981

Unified study of the lattice mechanical properties of the AgCl crystal

S. Ghosh, A. N. Basu, and S. Sengupta

Phys. Rev. B 23, 1818 (1981) - Published 15 February, 1981

Dielectric response of mixed-valent TmSe

B. Batlogg

Phys. Rev. B 23, 1827 (1981) - Published 15 February, 1981

Exchange-correlation effects in silicon (111) inversion layers: Strain-enhanced valley-occupancy phase transition

W. L. Bloss, S. C. Ying, and J. J. Quinn

Phys. Rev. B 23, 1839 (1981) - Published 15 February, 1981

New $c - 2 \times 8$ unit cell for the Ge(111) surface

D. J. Chadi and C. Chiang

Phys. Rev. B 23, 1843 (1981) - Published 15 February, 1981

Electron mobility limited by ionized impurity scattering with nonlinear screening in semiconductors

D. Chattopadhyay

Phys. Rev. B 23, 1847 (1981) - Published 15 February, 1981

Theory of interstitial transition-metal impurities in silicon

Gary G. DeLeo, George D. Watkins, and W. Beall Fowler

Phys. Rev. B 23, 1851 (1981) - Published 15 February, 1981

Anomalous x-ray transmission in dislocation-free silicon after electron irradiation

G. Fritsch and J. S. Koehler

Phys. Rev. B 23, 1859 (1981) - Published 15 February, 1981

Model of hydrogenated amorphous silicon

Lester Guttman

Phys. Rev. B 23, 1866 (1981) - Published 15 February, 1981

Subband structure of $n$ -channel inversion layers on polar semiconductors

G. H. Kawamoto, J. J. Quinn, and W. L. Bloss

Phys. Rev. B 23, 1875 (1981) - Published 15 February, 1981

Order-disorder phase transition of the iodine sublattice in tetrathiofulvalene iodide ( $n ≅ 0.7$ ) in a strong electric field

Shabbir M. Latif and Herbert Kroemer

Phys. Rev. B 23, 1887 (1981) - Published 15 February, 1981

Optical properties of InSb and its electrochemically grown anodic oxide

H. J. Mattausch and D. E. Aspnes

Phys. Rev. B 23, 1896 (1981) - Published 15 February, 1981

Two-component electron-hole liquid in $〈 110 〉$ -stressed Ge and Si: A test case for theory and experiment

G. Kirczenow

Phys. Rev. B 23, 1902 (1981) - Published 15 February, 1981

Screening of hot-carrier relaxation in highly photoexcited semiconductors

Ellen J. Yoffa

Phys. Rev. B 23, 1909 (1981) - Published 15 February, 1981

Single-particle energy levels in doped semiconductors at densities below the metal-nonmetal transition

R. N. Bhatt and T. M. Rice

Phys. Rev. B 23, 1920 (1981) - Published 15 February, 1981

Nonlinear conductivity in polar semiconductors: Alternative derivation of the Thornber-Feynman theory

F. M. Peeters and J. T. Devreese

Phys. Rev. B 23, 1936 (1981) - Published 15 February, 1981

Excited states at deep centers in Si:S and Si:Se

H. G. Grimmeiss and B. Skarstam

Phys. Rev. B 23, 1947 (1981) - Published 15 February, 1981

Exchange and polaron corrections for excitons in the degenerate-band case

U. Rössler and H.-R. Trebin

Phys. Rev. B 23, 1961 (1981) - Published 15 February, 1981

Band tailing in heavily doped semiconductors. Scattering and impurity-concentration-fluctuation effects

J. Serre, A. Ghazali, and P. Leroux Hugon

Phys. Rev. B 23, 1971 (1981) - Published 15 February, 1981

Nonequilibrium phase transition in a radiation-driven Josephson junction

Subodh R. Shenoy and G. S. Agarwal

Phys. Rev. B 23, 1977 (1981) - Published 15 February, 1981

Effect of neutron irradiation on the low-temperature specific heat and thermal conductivity of magnesium oxide

J. W. Gardner and A. C. Anderson

Phys. Rev. B 23, 1988 (1981) - Published 15 February, 1981

Molecular-dynamical studies of the depinning of charge-density waves

J. B. Sokoloff

Phys. Rev. B 23, 1992 (1981) - Published 15 February, 1981

Symmetry and $g$ value of the relaxed excited state of KI:T $I^{+}$ $A_{X}$ emission

D. J. Simkin, J. P. Martin, M. Authier-Martin, K. Oyama-Gannon, P. Fabeni, G. P. Pazzi, and A. Ranfagni

Phys. Rev. B 23, 1999 (1981) - Published 15 February, 1981

First approach to the band structure of $α$ -rhombohedral boron

F. Perrot

Phys. Rev. B 23, 2004 (1981) - Published 15 February, 1981

Line shape of the low-energy tail of exciton absorption in molecular crystals

Jai Singh

Phys. Rev. B 23, 2011 (1981) - Published 15 February, 1981

X-ray-induced thermoluminescence centers in Ca $F_{2}$ : ${Ho}^{3 +}$

S. T. Pai and K. C. Lee

Phys. Rev. B 23, 2022 (1981) - Published 15 February, 1981

BRIEF REPORTS

Magneto-Raman scattering from Al acceptors in SiC

J. F. Scott, D. J. Toms, Le Si Dang, K. M. Lee, G. D. Watkins, and W. J. Choyke

Phys. Rev. B 23, 2029 (1981) - Published 15 February, 1981

COMMENTS

Comment on "Threshold for optically induced dislocation glide in GaAs-GaAlAs double heterostructures: Degradation via a new cooperative phenomenon?"

J. H. Basson and J. A. Van Vechten

Phys. Rev. B 23, 2032 (1981) - Published 15 February, 1981

Effect of charge deformation and geometric relaxation on the dynamics and the thermodynamic properties of the MgO (001) surface. II. Shell models

G. Lakshmi and F. W. de Wette

Phys. Rev. B 23, 2035 (1981) - Published 15 February, 1981

Quasiclassical theory of quantum particles in two incommensurate periodic potentials

J. B. Sokoloff

Phys. Rev. B 23, 2039 (1981) - Published 15 February, 1981

RAPID COMMUNICATIONS

RAPID COMMUNICATION

Theory of hydrogenated silicon

E. N. Economou and D. A. Papaconstantopoulos

Phys. Rev. B 23, 2042(R) (1981) - Published 15 February, 1981