Volume 38, Issue 9

15 September 1988

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ARTICLES

Angle-integrated photoemission studies of Ni/Nb(110) and modification of the surface by heat treatment

Xiaohe Pan, M. W. Ruckman, and Myron Strongin

Phys. Rev. B 38, 5805 (1988) - Published 15 September, 1988

Multifractal spectral and wave-function properties of the quasiperiodic modulated-spring model

T. Janssen and M. Kohmoto

Phys. Rev. B 38, 5811 (1988) - Published 15 September, 1988

Optical investigation of quasi-one- and two-dimensional systems $A_{0.9}$ ${Mo}_{6}$ $O_{17}$ (A=Li, K, and Na)

L. Degiorgi, P. Wachter, M. Greenblatt, W. H. McCarroll, K. V. Ramanujachary, J. Marcus, and C. Schlenker

Phys. Rev. B 38, 5821 (1988) - Published 15 September, 1988

Scattering of electrons from atomic surface defects near simple metal surfaces

T. W. Duryea

Phys. Rev. B 38, 5827 (1988) - Published 15 September, 1988

Outer-core emission spectra of heavy alkali metals

R. L. Fink, P. N. First, and C. P. Flynn

Phys. Rev. B 38, 5839 (1988) - Published 15 September, 1988

Surface lattice dynamics of Cu(111)

Burl M. Hall, D. L. Mills, Mohamed H. Mohamed, and L. L. Kesmodel

Phys. Rev. B 38, 5856 (1988) - Published 15 September, 1988

Photoemission from Ar, Kr, and Xe on Pb(111)

K. Jacobi

Phys. Rev. B 38, 5869 (1988) - Published 15 September, 1988

Magnetic susceptibility of tetrathiafulvalene tetracyanoquinodimethane under pressure

S. Klotz, J. S. Schilling, M. Weger, and K. Bechgaard

Phys. Rev. B 38, 5878 (1988) - Published 15 September, 1988

Bands and interbands in ${LaPd}_{3}$ and ${CePd}_{3}$

C. Koenig and M. A. Khan

Phys. Rev. B 38, 5887 (1988) - Published 15 September, 1988

Temperature dependence of resistance noise in metal-insulator mixtures below the percolation threshold

Dror Lubin, Isaac Goldhirsch, and Yuval Gefen

Phys. Rev. B 38, 5899 (1988) - Published 15 September, 1988

Inequivalence of the physical and Kohn-Sham Fermi surfaces

Daniel Mearns

Phys. Rev. B 38, 5906 (1988) - Published 15 September, 1988

Electrical conductivity, thermoelectric power, and ESR of a new family of molecular conductors, dicyanoquinonediimine-metal [(DCNQI $)_{2}$ M] compounds

Takehiko Mori, Hiroo Inokuchi, Akiko Kobayashi, Reizo Kato, and Hayao Kobayashi

Phys. Rev. B 38, 5913 (1988) - Published 15 September, 1988

Point-contact spectroscopy in incommensurate chromium

H. Meekes

Phys. Rev. B 38, 5924 (1988) - Published 15 September, 1988

Calculation of phonon dispersion in superlattices using the matching procedure

F. Mila and J. Szeftel

Phys. Rev. B 38, 5931 (1988) - Published 15 September, 1988

Bulk and surface phonons in fcc-fcc superlattices using the matching procedure

F. Mila and J. Szeftel

Phys. Rev. B 38, 5938 (1988) - Published 15 September, 1988

Topological short-range disorder in ${Au}_{1 - x}$ ${Ni}_{x}$ solid solutions: An extended x-ray-absorption fine-structure spectroscopy and computer-simulation study

G. Renaud, N. Motta, F. Lançon, and M. Belakhovsky

Phys. Rev. B 38, 5944 (1988) - Published 15 September, 1988

Bulk band dispersion in ${Ti}_{2}$ $O_{3}$ and $V_{2}$ $O_{3}$

Kevin E. Smith and Victor E. Henrich

Phys. Rev. B 38, 5965 (1988) - Published 15 September, 1988

Occupied quasiparticle bandwidth of potassium

Michael P. Surh, John E. Northrup, and Steven G. Louie

Phys. Rev. B 38, 5976 (1988) - Published 15 September, 1988

Exact eigenstates on a two-dimensional Penrose lattice and their fractal dimensions

Tetsuji Tokihiro, Takeo Fujiwara, and Masao Arai

Phys. Rev. B 38, 5981 (1988) - Published 15 September, 1988

Partial densities of states of ordered ${Cu}_{3}$ Au

G. K. Wertheim, L. F. Mattheiss, and D. N. E. Buchanan

Phys. Rev. B 38, 5988 (1988) - Published 15 September, 1988

Empty-lattice test for non-muffin-tin multiple-scattering equations

R. Zeller

Phys. Rev. B 38, 5993 (1988) - Published 15 September, 1988

EL2 and the electronic structure of the ${As}_{Ga}$ - ${As}_{i}$ pair in GaAs: The role of lattice distortion in the properties of the normal state

G. A. Baraff, M. Lannoo, and M. Schlüter

Phys. Rev. B 38, 6003 (1988) - Published 15 September, 1988

Exciton mixing in quantum wells

Gerrit E. W. Bauer and Tsuneya Ando

Phys. Rev. B 38, 6015 (1988) - Published 15 September, 1988

Photoconductivity in trans-polyacetylene: Transport and recombination of photogenerated charged excitations

H. Bleier, S. Roth, Y. Q. Shen, D. Schäfer-Siebert, and G. Leising

Phys. Rev. B 38, 6031 (1988) - Published 15 September, 1988

Structure and single-phase regime of boron carbides

David Emin

Phys. Rev. B 38, 6041 (1988) - Published 15 September, 1988

Interface roughness and the dispersion of confined LO phonons in GaAs/AlAs quantum wells

G. Fasol, M. Tanaka, H. Sakaki, and Y. Horikoshi

Phys. Rev. B 38, 6056 (1988) - Published 15 September, 1988

Time-resolved study of vibrations of a-Ge:H/a-Si:H multilayers

H. T. Grahn, H. J. Maris, J. Tauc, and B. Abeles

Phys. Rev. B 38, 6066 (1988) - Published 15 September, 1988

Dimerization enhancement in one-dimensional Hubbard and Pariser-Parr-Pople models

G. W. Hayden and Z. G. Soos

Phys. Rev. B 38, 6075 (1988) - Published 15 September, 1988

MILESTONE

Microscopic structure of the ${SiO}_{2}$ /Si interface

F. J. Himpsel, F. R. McFeely, A. Taleb-Ibrahimi, J. A. Yarmoff, and G. Hollinger

Phys. Rev. B 38, 6084 (1988) - Published 15 September, 1988

Resonant Raman-active acoustic phonons in ion-implanted GaAs

M. Holtz, R. Zallen, and O. Brafman

Phys. Rev. B 38, 6097 (1988) - Published 15 September, 1988

Diffusion of impurities in amorphous silicon

Yu. L. Khait, R. Brener, and R. Beserman

Phys. Rev. B 38, 6107 (1988) - Published 15 September, 1988

Band structure of semiconductor alloys

M. F. Ling and D. J. Miller

Phys. Rev. B 38, 6113 (1988) - Published 15 September, 1988

Comparison of the structural, electrical, and optical properties of amorphous silicon-germanium alloys produced from hydrides and fluorides

K. D. Mackenzie, J. H. Burnett, J. R. Eggert, Y. M. Li, and W. Paul

Phys. Rev. B 38, 6120 (1988) - Published 15 September, 1988

Experimental surface electronic band structure of the (101¯0) surfaces of CdS and CdSe

K. O. Magnusson and S. A. Flodström

Phys. Rev. B 38, 6137 (1988) - Published 15 September, 1988

Effect of doping percentages on the conductivity and energy gap of a-Si thin films

M. N. Makadsi and M. F. A. Alias

Phys. Rev. B 38, 6143 (1988) - Published 15 September, 1988

Exciton binding energy in (Al,Ga)As quantum wells: Effects of crystal orientation and envelope-function symmetry

L. W. Molenkamp, G. E. W. Bauer, R. Eppenga, and C. T. Foxon

Phys. Rev. B 38, 6147 (1988) - Published 15 September, 1988

Transfer-matrix algorithm for the calculation of the band structure of semiconductor superlattices

L. R. Ram-Mohan, K. H. Yoo, and R. L. Aggarwal

Phys. Rev. B 38, 6151 (1988) - Published 15 September, 1988

Thermionic emission and Gaussian transport of holes in a GaAs/ ${Al}_{x}$ ${Ga}_{1 - x}$ As multiple-quantum-well structure

H. Schneider and K. v. Klitzing

Phys. Rev. B 38, 6160 (1988) - Published 15 September, 1988

Optical spectra in conducting polymers: Breaking of symmetries

U. Sum, K. Fesser, and H. Büttner

Phys. Rev. B 38, 6166 (1988) - Published 15 September, 1988

Heat capacity of the two-dimensional electron gas in GaAs/ ${Al}_{x}$ ${Ga}_{1 - x}$ As multiple-quantum-well structures

J. K. Wang, J. H. Campbell, D. C. Tsui, and A. Y. Cho

Phys. Rev. B 38, 6174 (1988) - Published 15 September, 1988

Electric-field-induced quenching of shallow and deep bound excitons in silicon

H. Weman, Q. X. Zhao, and B. Monemar

Phys. Rev. B 38, 6185 (1988) - Published 15 September, 1988

Ab initio study of graphite → diamondlike transitions in BN

Renata M. Wentzcovitch, S. Fahy, Marvin L. Cohen, and Steven G. Louie

Phys. Rev. B 38, 6191 (1988) - Published 15 September, 1988

Simulations of atomic processes at semiconductor surfaces: General method and chemisorption on GaAs(110)

Madhu Menon and Roland E. Allen

Phys. Rev. B 38, 6196 (1988) - Published 15 September, 1988

Gauge-invariant two-photon transitions in quantum wells

Alfredo Pasquarello and Antonio Quattropani

Phys. Rev. B 38, 6206 (1988) - Published 15 September, 1988

Transient photoconductivity in oriented trans-polyacetylene prepared by the Naarmann-Theophilou method

S. D. Phillips and A. J. Heeger

Phys. Rev. B 38, 6211 (1988) - Published 15 September, 1988

Systematic calculations of the band structures of the rare-gas crystals neon, argon, krypton, and xenon

N. C. Bacalis, D. A. Papaconstantopoulos, and W. E. Pickett

Phys. Rev. B 38, 6218 (1988) - Published 15 September, 1988

Laser-induced grating spectroscopy of alexandrite crystals

Guy D. Gilliland, Andrzej Suchocki, Keith W. Ver Steeg, Richard C. Powell, and Donald F. Heller

Phys. Rev. B 38, 6227 (1988) - Published 15 September, 1988

Distribution of tunneling-level barrier heights in (KBr $)_{1 - x}$ (KCN $)_{x}$ : Comparison of dielectric response and specific heat

Richard M. Ernst, Lei Wu, Sidney R. Nagel, and Sherman Susman

Phys. Rev. B 38, 6246 (1988) - Published 15 September, 1988

Equilibrium orientations of diatomic-molecular impurities in cubic crystals determined by a polarized Raman study of the stretching mode

Hilde Fleurent, Wim Joosen, and Dirk Schoemaker

Phys. Rev. B 38, 6257 (1988) - Published 15 September, 1988

Prediction of a high-pressure phase transition and other properties of solid ${CO}_{2}$ at low temperatures

B. Kuchta and R. D. Etters

Phys. Rev. B 38, 6265 (1988) - Published 15 September, 1988

Ultrasonic attenuation peaks near the diffuse solid-electrolyte transition temperature in ${PbF}_{2}$ and ${BaF}_{2}$

M. O. Manasreh and D. O. Pederson

Phys. Rev. B 38, 6270 (1988) - Published 15 September, 1988

Second-harmonic generation in quinquethienyl monolayers

G. Marowsky, R. Steinhoff, L. F. Chi, J. Hutter, and G. Wagnière

Phys. Rev. B 38, 6274 (1988) - Published 15 September, 1988

Small-angle x-ray scattering study of aqueous solutions of sulfonated calix[6]arene derivatives

Hideki Matsuoka, Mitsuyuki Tsurumi, and Norio Ise

Phys. Rev. B 38, 6279 (1988) - Published 15 September, 1988

BRIEF REPORTS

Transformation of spatially direct to spatially indirect excitons in coupled double quantum wells

S. Charbonneau, M. L. W. Thewalt, Emil S. Koteles, and B. Elman

Phys. Rev. B 38, 6287 (1988) - Published 15 September, 1988

Final-state screening in photoemission from adsorbed xenon layers

K. Jacobi

Phys. Rev. B 38, 6291 (1988) - Published 15 September, 1988

Density matrices for states in the lowest Landau level of a two-dimensional electron gas

A. H. MacDonald and S. M. Girvin

Phys. Rev. B 38, 6295 (1988) - Published 15 September, 1988

Bound states trapped by the soliton in the Su-Schrieffer-Heeger model

Rouli Fu, Zhigang Shuai, Jie Liu, Xin Sun, and J. Charles Hicks

Phys. Rev. B 38, 6298 (1988) - Published 15 September, 1988

Broadening of the Landau levels in quasi-two-dimensional conductors caused by impurity scattering

Tsofar Maniv and I. D. Vagner

Phys. Rev. B 38, 6301 (1988) - Published 15 September, 1988

Tetrahedral semiconductors: Constancy of the midgap energies with respect to the vacuum level

J. Menéndez

Phys. Rev. B 38, 6305 (1988) - Published 15 September, 1988

EPR observation of a platinum pair complex in Si

H. J. von Bardeleben, D. Stiévenard, M. Brousseau, and J. Barrau

Phys. Rev. B 38, 6308 (1988) - Published 15 September, 1988

Saturation of the density of states of tunneling systems in defective crystalline neutron-irradiated quartz

A. Vanelstraete and C. Laermans

Phys. Rev. B 38, 6312 (1988) - Published 15 September, 1988

COMMENTS

Comment on volume relaxation around defects in silicon upon electron emission

D. D. Nolte, W. Walukiewicz, and E. E. Haller

Phys. Rev. B 38, 6316 (1988) - Published 15 September, 1988

Reply to ‘‘Comment on volume relaxation around defects in silicon upon electron emission’’

George A. Samara and C. E. Barnes

Phys. Rev. B 38, 6318 (1988) - Published 15 September, 1988

Comment on ‘‘Filling three-dimensional space with tetrahedra: A geometric and crystallographic problem’’

David P. Shoemaker and Clara B. Shoemaker

Phys. Rev. B 38, 6319 (1988) - Published 15 September, 1988

Comment on ‘‘Time evolution of Bloch electrons in a homogeneous electric field’’

J. Zak

Phys. Rev. B 38, 6322 (1988) - Published 15 September, 1988

Reply to ‘‘Comment on ‘Time evolution of Bloch electrons in a homogeneous electric field’ ’’

J. B. Krieger and G. J. Iafrate

Phys. Rev. B 38, 6324 (1988) - Published 15 September, 1988

Comment on ‘‘Exact calculations of quasibound states of an isolated quantum well with uniform electric field: Quantum-well Stark resonance’’

E. J. Austin and M. Jaros

Phys. Rev. B 38, 6326 (1988) - Published 15 September, 1988

Defect parameters obtained from positron-annihilation and self-diffusion experiments in silicon

P. Varotsos, K. Eftaxias, and V. Hadjicontis

Phys. Rev. B 38, 6328 (1988) - Published 15 September, 1988

RAPID COMMUNICATIONS

RAPID COMMUNICATION

Dependence of core-level photoemission spectra on overlayer growth mode: Al on InP(110)

A. B. McLean, I. T. McGovern, C. Stephens, W. G. Wilke, H. Haak, K. Horn, and W. Braun

Phys. Rev. B 38, 6330(R) (1988) - Published 15 September, 1988

RAPID COMMUNICATION

X-ray diffraction study of epitaxial Nb-Ta overlayers on sapphire

F. J. Lamelas, Hui He, and Roy Clarke

Phys. Rev. B 38, 6334(R) (1988) - Published 15 September, 1988

RAPID COMMUNICATION

Ordering of isovalent intersemiconductor alloys

James E. Bernard, L. G. Ferreira, S. -H. Wei, and Alex Zunger

Phys. Rev. B 38, 6338(R) (1988) - Published 15 September, 1988

RAPID COMMUNICATION

Carrier-sign reversal in Bi-doped bulk amorphous semiconductors ${Ge}_{20} {Te}_{80 - x} {Bi}_{x}$

K. L. Bhatia, G. Parthasarathy, Ashwani Sharma, and E. S. R. Gopal

Phys. Rev. B 38, 6342(R) (1988) - Published 15 September, 1988

RAPID COMMUNICATION

Low-temperature phonon-drag thermoelectric power in heterojunctions

S. K. Lyo

Phys. Rev. B 38, 6345(R) (1988) - Published 15 September, 1988

RAPID COMMUNICATION

Raman scattering by interface-phonon polaritons in a GaAs/AlAs heterostructure

M. Nakayama, M. Ishida, and N. Sano

Phys. Rev. B 38, 6348(R) (1988) - Published 15 September, 1988

RAPID COMMUNICATION

Silent soft mode in hexagonal barium titanate observed by hyper-Raman scattering

Kuon Inoue, Atsushi Hasegawa, Kenji Watanabe, Hirotaka Yamaguchi, Hiromoto Uwe, and Tunetaro Sakudo

Phys. Rev. B 38, 6352(R) (1988) - Published 15 September, 1988