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Physical Review B

Volume 48, Issue 19

15 November 1993

Browse Issues:

ARTICLES

Electronic structure: wide-band, narrow-band, and strongly correlated systems

Barely metallic states with enhanced carrier mass in $Y_{1 - x}$ ${Ca}_{x}$ ${TiO}_{3}$

Y. Tokura, Y. Taguchi, Y. Moritomo, K. Kumagai, T. Suzuki, and Y. Iye

Phys. Rev. B 48, 14063 (1993) - Published 15 November, 1993

Calculations of R-line thermal shift of MgO: $V^{2 +}$

Ma Dong-ping, Huang Xiao-yi, Chen Ju-rong, Liu Yan-young, and Zhang Ji-ping

Phys. Rev. B 48, 14067 (1993) - Published 15 November, 1993

Critical behavior of the density of states at the metal-insulator transition

D. Belitz and T. R. Kirkpatrick

Phys. Rev. B 48, 14072 (1993) - Published 15 November, 1993

Counterion-induced processibility of polyaniline: Thermoelectric power

C. O. Yoon, M. Reghu, D. Moses, A. J. Heeger, and Y. Cao

Phys. Rev. B 48, 14080 (1993) - Published 15 November, 1993

Theory of generalized Wannier functions for nearly periodic potentials

Michael R. Geller and Walter Kohn

Phys. Rev. B 48, 14085 (1993) - Published 15 November, 1993

Estimates of phonon-mediated electron-electron scattering rates in the metal elements

K. Schwartzman and W. E. Lawrence

Phys. Rev. B 48, 14089 (1993) - Published 15 November, 1993

Weighted-density-approximation ground-state studies of solids

David J. Singh

Phys. Rev. B 48, 14099 (1993) - Published 15 November, 1993

Transient picosecond photoconductivity in polyacetylene

J. Reichenbach, M. Kaiser, and S. Roth

Phys. Rev. B 48, 14104 (1993) - Published 15 November, 1993

Tuning of resonances in the generalized random trimer model

D. Giri, P. K. Datta, and K. Kundu

Phys. Rev. B 48, 14113 (1993) - Published 15 November, 1993

Photonic band gaps and defects in two dimensions: Studies of the transmission coefficient

M. Sigalas, C. M. Soukoulis, E. N. Economou, C. T. Chan, and K. M. Ho

Phys. Rev. B 48, 14121 (1993) - Published 15 November, 1993

Semiconductors I: bulk

Van Vleck paramagnetism of chromium- and iron-doped II-VI semiconductors

E. Kartheuser, Sergio Rodriguez, and Murielle Villeret

Phys. Rev. B 48, 14127 (1993) - Published 15 November, 1993

First-principles study of the electronic structure of γ-InSe and β-InSe

P. Gomes da Costa, R. G. Dandrea, R. F. Wallis, and M. Balkanski

Phys. Rev. B 48, 14135 (1993) - Published 15 November, 1993

Electron correlation in Si studied by high-resolution KLV Auger spectroscopy

P. S. Fowles, J. A. Evans, P. M. Lee, A. D. Laine, and P. Weightman

Phys. Rev. B 48, 14142 (1993) - Published 15 November, 1993

Configuration-interaction description of transition-metal impurities in II-VI semiconductors

T. Mizokawa and A. Fujimori

Phys. Rev. B 48, 14150 (1993) - Published 15 November, 1993

Optically detected magnetic resonance in zinc-doped indium phosphide under uniaxial stress

H. C. Crookham, E. R. Glaser, R. L. Henry, and T. A. Kennedy

Phys. Rev. B 48, 14157 (1993) - Published 15 November, 1993

Shallow hydrogen-related donors in silicon

Joachim Hartung and Jörg Weber

Phys. Rev. B 48, 14161 (1993) - Published 15 November, 1993

Cathodoluminescence spectroscopy of free and bound excitons in chemical-vapor-deposited diamond

Lawrence H. Robins, Edward N. Farabaugh, and Albert Feldman

Phys. Rev. B 48, 14167 (1993) - Published 15 November, 1993

Phase diagram and critical behavior of the Si-Ge unmixing transition: A Monte Carlo study of a model with elastic degrees of freedom

B. Dünweg and D. P. Landau

Phys. Rev. B 48, 14182 (1993) - Published 15 November, 1993

Nonequilibrium occupancy of tail states and defects in a-Si:H: Implications for defect structure

G. Schumm, W. B. Jackson, and R. A. Street

Phys. Rev. B 48, 14198 (1993) - Published 15 November, 1993

Tetrahedron model for the optical dielectric function of H-rich silicon oxynitride

Adele Sassella

Phys. Rev. B 48, 14208 (1993) - Published 15 November, 1993

Accuracy of the chemical-pseudopotential method for tetrahedral semiconductors

W. M. C. Foulkes

Phys. Rev. B 48, 14216 (1993) - Published 15 November, 1993

Semiconductors II: surfaces, interfaces, microstructures, and related topics

Energy levels of a hydrogenic impurity in GaAs/ ${Ga}_{1 - x}$ ${Al}_{x}$ As multiple-quantum-well structures with narrow barriers in a magnetic field

N. Nguyen, J. X. Zang, R. Ranganathan, B. D. McCombe, and M. L. Rustgi

Phys. Rev. B 48, 14226 (1993) - Published 15 November, 1993

Quantum-well states of InAs/AlSb resonant-tunneling diodes

Timothy B. Boykin, R. E. Carnahan, and R. J. Higgins

Phys. Rev. B 48, 14232 (1993) - Published 15 November, 1993

Structure, stability, and electronic properties of pseudomorphic (Si $)_{n}$ /(Ge $)_{m}$ superlattices

P. C. Kelires, C. Tserbak, and G. Theodorou

Phys. Rev. B 48, 14238 (1993) - Published 15 November, 1993

Laterally inhomogeneous surface-potential distribution and photovoltage at clustered In/ ${WSe}_{2}$ (0001) interfaces

R. Schlaf, A. Klein, C. Pettenkofer, and W. Jaegermann

Phys. Rev. B 48, 14242 (1993) - Published 15 November, 1993

Fermi-energy edge singularity and excitonic enhancement associated with the second subband in asymmetric modulation-doped quantum wells

T. A. Fisher, P. E. Simmonds, M. S. Skolnick, A. D. Martin, and R. S. Smith

Phys. Rev. B 48, 14253 (1993) - Published 15 November, 1993

Inverse parabolic quantum wells grown by molecular-beam epitaxy using digital and analog techniques

W. Q. Chen, S. M. Wang, T. G. Andersson, and J. Thordson

Phys. Rev. B 48, 14264 (1993) - Published 15 November, 1993

Morphology of monatomic step edges on vicinal Si(001)

H. J. W. Zandvliet and H. B. Elswijk

Phys. Rev. B 48, 14269 (1993) - Published 15 November, 1993

Electronic-band parameters in strained ${Si}_{1 - x}$ ${Ge}_{x}$ alloys on ${Si}_{1 - y}$ ${Ge}_{y}$ substrates

Martin M. Rieger and P. Vogl

Phys. Rev. B 48, 14276 (1993) - Published 15 November, 1993

Exponentially narrow current dip for resonant-tunneling structure of three quantum dots

M. Sumetskii

Phys. Rev. B 48, 14288 (1993) - Published 15 November, 1993

Scanning-tunneling-microscopy observation of thermal oxide growth on Si(111)7×7 surfaces

Y. Ono, M. Tabe, and H. Kageshima

Phys. Rev. B 48, 14291 (1993) - Published 15 November, 1993

Conduction-band states in GaSb(110) and GaP(110) at the Brillouin-zone center

Jürgen Faul, Georg Neuhold, Lothar Ley, Jordi Fraxedas, Stefan Zollner, John D. Riley, and Robert C. G. Leckey

Phys. Rev. B 48, 14301 (1993) - Published 15 November, 1993

Nondivergent calculation of unwanted high-order tunneling rates in single-electron devices

P. Lafarge and D. Esteve

Phys. Rev. B 48, 14309 (1993) - Published 15 November, 1993

Structure of persistent current in the presence of a magnetic flux and an electrostatic potential

Daisuke Takai and Kuniichi Ohta

Phys. Rev. B 48, 14318 (1993) - Published 15 November, 1993

Model of hydrogen diffusion on Si(100)

V. P. Zhdanov

Phys. Rev. B 48, 14325 (1993) - Published 15 November, 1993

Band-gap renormalization in quantum wires

R. Cingolani, R. Rinaldi, M. Ferrara, G. C. La Rocca, H. Lage, D. Heitmann, K. Ploog, and H. Kalt

Phys. Rev. B 48, 14331 (1993) - Published 15 November, 1993

Leaky and mutually coupled quantum wires

Ch. Kunze

Phys. Rev. B 48, 14338 (1993) - Published 15 November, 1993

Origin of photoluminescence signals obtained by picosecond-excitation correlation measurements

J. L. A. Chilla, O. Buccafusca, and J. J. Rocca

Phys. Rev. B 48, 14347 (1993) - Published 15 November, 1993

Optical modes in GaAs/AlAs superlattices

M. P. Chamberlain, M. Cardona, and B. K. Ridley

Phys. Rev. B 48, 14356 (1993) - Published 15 November, 1993

Magnetotransport through antidot and dot lattices in two-dimensional structures

V. G. Burnett, A. L. Efros, and F. G. Pikus

Phys. Rev. B 48, 14365 (1993) - Published 15 November, 1993

Relativistic photoemission theory applied to GaAs(110)

J. Braun and G. Borstel

Phys. Rev. B 48, 14373 (1993) - Published 15 November, 1993

Influence of frustration on the persistent current of an interacting one-dimensional ring

Richard Berkovits

Phys. Rev. B 48, 14381 (1993) - Published 15 November, 1993

Self-consistent calculation of ionized impurity scattering in semiconductor quantum wires

Ben Yu-Kuang Hu and S. Das Sarma

Phys. Rev. B 48, 14388 (1993) - Published 15 November, 1993

Complex-energy analysis of intrinsic lifetimes of resonances in biased multiple quantum wells

Mathias Wagner and Hiroshi Mizuta

Phys. Rev. B 48, 14393 (1993) - Published 15 November, 1993

Collective excitations and inelastic electron scattering in semiconductor superlattices

Xiaoju Wu and Sergio E. Ulloa

Phys. Rev. B 48, 14407 (1993) - Published 15 November, 1993

Self-consistent calculation of ionized-donor distribution in a nanostructured heterojunction with corrugated gate

Karlheinz Lier and Rolf R. Gerhardts

Phys. Rev. B 48, 14416 (1993) - Published 15 November, 1993

Phonon universal-transmission fluctuations and localization in semiconductor superlattices with a controlled degree of order

Norihiko Nishiguchi, Shin-ichiro Tamura, and Franco Nori

Phys. Rev. B 48, 14426 (1993) - Published 15 November, 1993

Surface physics, low-dimensional systems, and related topics

Interaction of hydrogen with the Ag(110) surface

P. T. Sprunger and E. W. Plummer

Phys. Rev. B 48, 14436 (1993) - Published 15 November, 1993

Simulated gold clusters and relative extended x-ray-absorption fine-structure spectra

Gregorio D’Agostino, Angelo Pinto, and Settimio Mobilio

Phys. Rev. B 48, 14447 (1993) - Published 15 November, 1993

Influence of surface energetic heterogeneity on the formation of adsorbed layers and wetting of solid surfaces: A Monte Carlo study

G. Chmiel, A. Patrykiejew, W. Rżysko, and S. Sokol/owski

Phys. Rev. B 48, 14454 (1993) - Published 15 November, 1993

High-resolution x-ray-scattering study of the structure of niobium thin films on sapphire

A. Gibaud, R. A. Cowley, D. F. McMorrow, R. C. C. Ward, and M. R. Wells

Phys. Rev. B 48, 14463 (1993) - Published 15 November, 1993

Roughness spectrum and surface width of self-affine fractal surfaces via the K-correlation model

George Palasantzas

Phys. Rev. B 48, 14472 (1993) - Published 15 November, 1993

Atomic-force and fluorescence microscopy of Langmuir-Blodgett monolayers of L-α-dimyristoylphosphatidic acid

J. M. Mikrut, P. Dutta, J. B. Ketterson, and R. C. MacDonald

Phys. Rev. B 48, 14479 (1993) - Published 15 November, 1993

Second-harmonic generation in thin films of copper phthalocyanine

K. Kumagai, G. Mizutani, H. Tsukioka, T. Yamauchi, and S. Ushioda

Phys. Rev. B 48, 14488 (1993) - Published 15 November, 1993

Excitation spectrum of a two-dimensional Wigner lattice

Z. Lenac and M. Šunjić

Phys. Rev. B 48, 14496 (1993) - Published 15 November, 1993

Phonon-focusing effect with laser-generated ultrasonic surface waves

Al. A. Kolomenskii and A. A. Maznev

Phys. Rev. B 48, 14502 (1993) - Published 15 November, 1993

Spot-profile-analyzing LEED study of the epitaxial growth of Fe, Co, and Cu on Cu(100)

G. L. Nyberg, M. T. Kief, and W. F. Egelhoff, Jr.

Phys. Rev. B 48, 14509 (1993) - Published 15 November, 1993

Surface-shifted N 1s and C 1s levels on the (100) surface of TiN and TiC

L. I. Johansson, H. I. P. Johansson, and K. L. Håkansson

Phys. Rev. B 48, 14520 (1993) - Published 15 November, 1993

Condensation energy and high-temperature phase of the W(100) reconstruction

W. K. Han and S. C. Ying

Phys. Rev. B 48, 14524 (1993) - Published 15 November, 1993

Kinetic-energy distributions of ${Ar}^{+}$ ions photodesorbed from argon multilayers

G. Dujardin, L. Hellner, L. Philippe, M-J. Besnard-Ramage, and P. Cirkel

Phys. Rev. B 48, 14529 (1993) - Published 15 November, 1993

Electron energy loss near supported particles

N. Zabala and A. Rivacoba

Phys. Rev. B 48, 14534 (1993) - Published 15 November, 1993

Scanning-probe-microscopy studies of superlattice structures and density-wave structures in 2H- ${NbSe}_{2}$ , 2H- ${TaSe}_{2}$ , and 2H- ${TaS}_{2}$ induced by Fe doping

Z. Dai, Q. Xue, Y. Gong, C. G. Slough, and R. V. Coleman

Phys. Rev. B 48, 14543 (1993) - Published 15 November, 1993

Multilayer adsorption of xenon, krypton, and argon on graphite: An ellipsometric study

H. S. Youn, X. F. Meng, and G. B. Hess

Phys. Rev. B 48, 14556 (1993) - Published 15 November, 1993

Temperature-dependent order of clean Pd(110)

H. Hörnis, J. D. West, E. H. Conrad, and R. Ellialtioǧlu

Phys. Rev. B 48, 14577 (1993) - Published 15 November, 1993

Numerical transfer-matrix study of surface-tension anisotropy in Ising models on square and cubic lattices

Howard L. Richards, M. A. Novotny, and Per Arne Rikvold

Phys. Rev. B 48, 14584 (1993) - Published 15 November, 1993

Crystallinity effects on the surface optical response in metals

Kieron Burke and W. L. Schaich

Phys. Rev. B 48, 14599 (1993) - Published 15 November, 1993

Dimensional crossover in the low-temperature transport properties of annealed amorphous Fe/Si multilayers

Yeong Kuo Lin, T. Novet, D. C. Johnson, and J. M. Valles, Jr.

Phys. Rev. B 48, 14608 (1993) - Published 15 November, 1993

Jahn-Teller distortion in the lowest excited singlet state of $C_{60}$

Shugo Suzuki, Daisuke Inomata, Naoya Sashide, and Kenji Nakao

Phys. Rev. B 48, 14615 (1993) - Published 15 November, 1993

Photoelectron study of Yb/ $C_{60}$ bilayers and the Yb fullerides formed at the interfaces

Bo Xia, M. W. Ruckman, and Myron Strongin

Phys. Rev. B 48, 14623 (1993) - Published 15 November, 1993

$C_{1 s}$ shakeup spectrum of $C_{60}$ : Global charge-transfer satellites and their relation to the x-ray threshold singularities in macroscopic systems

Christer Enkvist, Sten Lunell, Bo Sjögren, Svante Svensson, Paul A. Brühwiler, Anders Nilsson, Andrew J. Maxwell, and Nils Mårtensson

Phys. Rev. B 48, 14629 (1993) - Published 15 November, 1993

Heterophase fluctuations near the 260-K transition and the absence of reflections with half-integer indices in a $C_{60}$ single crystal

O. Blaschko, R. Glas, Ch. Maier, M. Haluska, and H. Kuzmany

Phys. Rev. B 48, 14638 (1993) - Published 15 November, 1993

BRIEF REPORTS

Electronic structure: wide-band, narrow-band, and strongly correlated systems

Delocalization of excitons in a magnetic field

P. Schmelcher

Phys. Rev. B 48, 14642 (1993) - Published 15 November, 1993

Unconstrained minimization approach for electronic computations that scales linearly with system size

Pablo Ordejón, David A. Drabold, Matthew P. Grumbach, and Richard M. Martin

Phys. Rev. B 48, 14646 (1993) - Published 15 November, 1993

Semiconductors I: bulk

Electrical switching and short-range order in As-Te glasses

S. S. K. Titus, R. Chatterjee, S. Asokan, and A. Kumar

Phys. Rev. B 48, 14650 (1993) - Published 15 November, 1993

Ab initio calculation of hyperfine parameters for nitrogen-pair defects in amorphous silicon nitride

Nobuhiko Ishii and Tatsuo Shimizu

Phys. Rev. B 48, 14653 (1993) - Published 15 November, 1993

Separating the effects of hydrogen and bond-angle variation on the amorphous-silicon band gap

A. J. M. Berntsen, W. F. van der Weg, P. A. Stolk, and F. W. Saris

Phys. Rev. B 48, 14656 (1993) - Published 15 November, 1993

Path-integral simulation of crystalline silicon

Rafael Rami´rez and Carlos P. Herrero

Phys. Rev. B 48, 14659 (1993) - Published 15 November, 1993

Semiconductors II: surfaces, interfaces, microstructures, and related topics

Structures of low-coverage phases of Al on the Si(100) surface observed by scanning tunneling microscopy

H. Itoh, J. Itoh, A. Schmid, and T. Ichinokawa

Phys. Rev. B 48, 14663 (1993) - Published 15 November, 1993

Phonons in parabolic quantum wells

F. Bechstedt, H. Grille, and R. Haupt

Phys. Rev. B 48, 14667 (1993) - Published 15 November, 1993

Simplified microscopic model for electron–optical-phonon interactions in quantum wells

A. R. Bhatt, K. W. Kim, M. A. Stroscio, and J. M. Higman

Phys. Rev. B 48, 14671 (1993) - Published 15 November, 1993

Hot-carrier cooling in GaAs: Quantum wells versus bulk

Y. Rosenwaks, M. C. Hanna, D. H. Levi, D. M. Szmyd, R. K. Ahrenkiel, and A. J. Nozik

Phys. Rev. B 48, 14675 (1993) - Published 15 November, 1993

Transverse hot-electron focusing

R. I. Hornsey, J. R. A. Cleaver, and H. Ahmed

Phys. Rev. B 48, 14679 (1993) - Published 15 November, 1993

Reconstruction, step ordering, and frustration on vicinal GaAs surfaces

L. Leprince, F. Houzay, and J. M. Moison

Phys. Rev. B 48, 14683 (1993) - Published 15 November, 1993

Noise characteristics of ultrasmall resonant-tunneling structures

K.-M. Hung and G. Y. Wu

Phys. Rev. B 48, 14687 (1993) - Published 15 November, 1993

$D^{-}$ centers in quantum wells: Spin-singlet and spin-triplet magneto-optical transitions

A. B. Dzyubenko and A. Yu. Sivachenko

Phys. Rev. B 48, 14690 (1993) - Published 15 November, 1993

Classical approach to the gap in the tunneling density of states of a two-dimensional electron liquid in a strong magnetic field

A. L. Efros and F. G. Pikus

Phys. Rev. B 48, 14694 (1993) - Published 15 November, 1993

Surface physics, low-dimensional systems, and related topics

Imaging atoms in the field-ion microscope: Tunneling calculations using realistic potentials

S. C. Lam and R. J. Needs

Phys. Rev. B 48, 14698 (1993) - Published 15 November, 1993

Stability of clusters in two dimensions

A. K. Ray, B. K. Rao, and P. Jena

Phys. Rev. B 48, 14702 (1993) - Published 15 November, 1993

Applicability of the nearest-neighbor-interaction model for stacking-fault energies

S. Schweizer, C. Elsässer, and M. Fähnle

Phys. Rev. B 48, 14706 (1993) - Published 15 November, 1993

Pseudojellium model with an application to lithium clusters

Ll. Serra, G. B. Bachelet, Nguyen Van Giai, and E. Lipparini

Phys. Rev. B 48, 14708 (1993) - Published 15 November, 1993

Point defects and thermal conductivity of $C_{60}$

B. Sundqvist

Phys. Rev. B 48, 14712 (1993) - Published 15 November, 1993

COMMENTS

Comment on ‘‘Transition from two to three dimensions in homoepitaxial thin-film growth: The effect of a repulsive barrier at descending steps’’

Bene Poelsema, Georg Rosenfeld, and George Comsa

Phys. Rev. B 48, 14714 (1993) - Published 15 November, 1993

Reply to ‘‘Comment on ‘Transition from two to three dimensions in homoepitaxial thin-film growth: The effect of a repulsive barrier at descending steps’ ’’

J. Ferro´n

Phys. Rev. B 48, 14715 (1993) - Published 15 November, 1993

RAPID COMMUNICATIONS

Electronic structure: wide-band, narrow-band, and strongly correlated systems

RAPID COMMUNICATION

Search for aging effects in randomly pinned charge-density waves

Á. Beleznay and G. Mihály

Phys. Rev. B 48, 14717(R) (1993) - Published 15 November, 1993

Semiconductors II: surfaces, interfaces, microstructures, and related topics

RAPID COMMUNICATION

One-atom point contacts

J. M. Krans, C. J. Muller, I. K. Yanson, Th. C. M. Govaert, R. Hesper, and J. M. van Ruitenbeek

Phys. Rev. B 48, 14721(R) (1993) - Published 15 November, 1993

RAPID COMMUNICATION

Correlated electron transport through a quantum dot: The multiple-level effect

T. Inoshita, A. Shimizu, Y. Kuramoto, and H. Sakaki

Phys. Rev. B 48, 14725(R) (1993) - Published 15 November, 1993

RAPID COMMUNICATION

Formation of twins during epitaxial growth of α-iron films on silicon (111)

Yang-Tse Cheng, Yen-Lung Chen, Wen-Jin Meng, and Yang Li

Phys. Rev. B 48, 14729(R) (1993) - Published 15 November, 1993

RAPID COMMUNICATION

Sb-induced surface reconstruction on GaAs(001)

Fumihiko Maeda, Yoshio Watanabe, and Masaharu Oshima

Phys. Rev. B 48, 14733(R) (1993) - Published 15 November, 1993

RAPID COMMUNICATION

Sudden beginning of metallic behavior at Ag/Si(100) interface: A real-time photoreflectance-spectroscopy investigation

Y. Borensztein, R. Alameh, and M. Roy

Phys. Rev. B 48, 14737(R) (1993) - Published 15 November, 1993

RAPID COMMUNICATION

Optical properties of ${Ga}_{0.8}$ ${In}_{0.2}$ As/GaAs surface quantum wells

J. Dreybrodt, A. Forchel, and J. P. Reithmaier

Phys. Rev. B 48, 14741(R) (1993) - Published 15 November, 1993

Surface physics, low-dimensional systems, and related topics

RAPID COMMUNICATION

Molecular-beam-epitaxy growth and structural characterization of high-quality single-crystal Co/Cr(001) superlattices

W. Donner, N. Metoki, A. Abromeit, and H. Zabel

Phys. Rev. B 48, 14745(R) (1993) - Published 15 November, 1993

RAPID COMMUNICATION

Orientation of benzene and pyridine on ZnO(101¯0)

J. F. Walsh, R. Davis, C. A. Muryn, G. Thornton, V. R. Dhanak, and K. C. Prince

Phys. Rev. B 48, 14749(R) (1993) - Published 15 November, 1993

RAPID COMMUNICATION

Surface core-level shift of 4f states for Tb(0001)

E. Navas, K. Starke, C. Laubschat, E. Weschke, and G. Kaindl

Phys. Rev. B 48, 14753(R) (1993) - Published 15 November, 1993

RAPID COMMUNICATION

Experimental evidence for 400-meV valence-band dispersion in solid $C_{60}$

G. Gensterblum, J.-J. Pireaux, P. A. Thiry, R. Caudano, T. Buslaps, R. L. Johnson, G. Le Lay, V. Aristov, R. Günther, A. Taleb-Ibrahimi, G. Indlekofer, and Y. Petroff

Phys. Rev. B 48, 14756(R) (1993) - Published 15 November, 1993

RAPID COMMUNICATION

Existence of persistent photoconductivity at high temperatures in $C_{60}$

A. Hamed, Rasmussen, and P. H. Hor

Phys. Rev. B 48, 14760(R) (1993) - Published 15 November, 1993

RAPID COMMUNICATION

Many-electron effects in ${BaC}_{60}$ : Collective response and molecular effects in optical conductivity and photoionization

Göran Wendin and Bo Wästberg

Phys. Rev. B 48, 14764(R) (1993) - Published 15 November, 1993

ERRATA

Erratum: Optical second-harmonic generation in III-V semiconductors: Detailed formulation and computational results

Zachary H. Levine and Douglas C. Allan

Phys. Rev. B 48, 14768 (1993) - Published 15 November, 1993