Volume 66, Issue 7

K. Streets, G. Boca, C. Georgiopoulos, J. H. Goldman, S. Hagopian, V. Hagopian, K. F. Johnson, D. M. Kaplan, D. Levinthal, F. Lopez, H. L. Sawyer, J. Streets, H. B. White, C. Young, M. Crisler, A. Lathrop, S. Pordes, J. Volk, M. Cummings, and H. R. Gustafson

Phys. Rev. Lett. 66, 864 (1991) - Published 18 February, 1991

Nuclear Physics

Early stages of nucleus-nucleus collisions: A microscopic calculation of the initial number of degrees of freedom

N. Cindro, M. Korolija, E. Brěták, and J. J. Griffin

Phys. Rev. Lett. 66, 868 (1991) - Published 18 February, 1991

Enhanced emission of high-energy photons perpendicular to the reaction plane in α+Th reactions

P.-E. Tegnér, B. Marianski, H. P. Morsch, M. Rogge, Chr. Bargholtz, P. Decowski, and L. Zemlo

Phys. Rev. Lett. 66, 872 (1991) - Published 18 February, 1991

Octupole softness of superdeformed ${}^{194}{Pb}$

P. Bonche, S. J. Krieger, M. S. Weiss, J. Dobaczewski, H. Flocard, and P.-H. Heenen

Phys. Rev. Lett. 66, 876 (1991) - Published 18 February, 1991

Atomic, Molecular, and Optical Physics

Electron-nuclear coupling in the hyperfine structure of the hydrogen molecular ion

J. F. Babb and A. Dalgarno

Phys. Rev. Lett. 66, 880 (1991) - Published 18 February, 1991

Vibronic coupling and core-hole localization in K-shell excitations of ethylene

F. X. Gadea, H. Köppel, J. Schirmer, L. S. Cederbaum, K. J. Randall, A. M. Bradshaw, Y. Ma, F. Sette, and C. T. Chen

Phys. Rev. Lett. 66, 883 (1991) - Published 18 February, 1991

Spontaneous emission in a disordered dielectric medium

Jordi Martorell and N. M. Lawandy

Phys. Rev. Lett. 66, 887 (1991) - Published 18 February, 1991

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

Onset of defect-mediated turbulence

J.-P. Eckmann and I. Procaccia

Phys. Rev. Lett. 66, 891 (1991) - Published 18 February, 1991

Condensed Matter: Structure, Etc.

Density profiles in confined critical systems and conformal invariance

Theodore W. Burkhardt and Tianyou Xue

Phys. Rev. Lett. 66, 895 (1991) - Published 18 February, 1991

Kinetics of polymer adsorption and desorption

Peter Frantz and Steve Granick

Phys. Rev. Lett. 66, 899 (1991) - Published 18 February, 1991

Structure of the Ripple Phase $P_{β'}$ in Hydrated Phosphatidylcholine Multimembranes

M. P. Hentschel and F. Rustichelli

Phys. Rev. Lett. 66, 903 (1991) - Published 18 February, 1991

Roughening-induced deconstruction in (110) facets of fcc crystals

Marcel den Nijs

Phys. Rev. Lett. 66, 907 (1991) - Published 18 February, 1991

Melting of small gold particles: Mechanism and size effects

Furio Ercolessi, Wanda Andreoni, and Erio Tosatti

Phys. Rev. Lett. 66, 911 (1991) - Published 18 February, 1991

Entropy calculation beyond the harmonic approximation: Application to diffusion by concerted exchange in Si

K. C. Pandey and Efthimios Kaxiras

Phys. Rev. Lett. 66, 915 (1991) - Published 18 February, 1991

Phonon density of states and superconductivity in ${Nd}_{1.85}$ ${Ce}_{0.15}$ ${CuO}_{4}$

J. W. Lynn, I. W. Sumarlin, D. A. Neumann, J. J. Rush, J. L. Peng, and Z. Y. Li

Phys. Rev. Lett. 66, 919 (1991) - Published 18 February, 1991

Condensed Matter: Electronic Properties, Etc.

Transport Anomalies and Internal Structural Models of Stable Quasicrystals

J. C. Phillips and Karin M. Rabe

Phys. Rev. Lett. 66, 923 (1991) - Published 18 February, 1991

Novel magneto-optical behavior in the Wigner-solid regime

H. Buhmann, W. Joss, K. von Klitzing, I. V. Kukushkin, A. S. Plaut, G. Martinez, K. Ploog, and V. B. Timofeev

Phys. Rev. Lett. 66, 926 (1991) - Published 18 February, 1991

Quantum-mechanical features in the resistance of a submircon junction

R. Behringer, G. Timp, H. U. Baranger, and J. E. Cunningham

Phys. Rev. Lett. 66, 930 (1991) - Published 18 February, 1991

Observation of time-resolved picosecond stimulated photon echoes and free polarization decay in GaAs/AlGaAs multiple quantum wells

M. D. Webb, S. T. Cundiff, and D. G. Steel

Phys. Rev. Lett. 66, 934 (1991) - Published 18 February, 1991

Ferromagnetism in small clusters

J. Merikoski, J. Timonen, M. Manninen, and P. Jena

Phys. Rev. Lett. 66, 938 (1991) - Published 18 February, 1991

Direct observation of spin-split electronic states of Pd at the Pd(111)/Fe(110) interface

W. Weber, D. A. Wesner, G. Güntherodt, and U. Linke

Phys. Rev. Lett. 66, 942 (1991) - Published 18 February, 1991

Two-dimensional negative-U Hubbard model

A. Moreo and D. J. Scalapino

Phys. Rev. Lett. 66, 946 (1991) - Published 18 February, 1991

Ordering of chirality for many planes of anyons

A. G. Rojo and G. S. Canright

Phys. Rev. Lett. 66, 949 (1991) - Published 18 February, 1991

SQUID picovoltometry of ${YBa}_{2}$ ${Cu}_{3}$ $O_{7}$ single crystals: Evidence for a finite-temperature phase transition in the high-field vortex state

P. L. Gammel, L. F. Schneemeyer, and D. J. Bishop

Phys. Rev. Lett. 66, 953 (1991) - Published 18 February, 1991

COMMENTS

Comment on ‘‘Modified Möbius inverse formula and its applications in physics’’

Andrzej J. Pindor

Phys. Rev. Lett. 66, 957 (1991) - Published 18 February, 1991

Comment on ‘‘Finite-size-scaling amplitudes of the incommensurate phase’’

H.-P. Eckle

Phys. Rev. Lett. 66, 958 (1991) - Published 18 February, 1991

Comment on ‘‘Scaling in the relaxation of supercooled liquids’’

Ralph V. Chamberlin

Phys. Rev. Lett. 66, 959 (1991) - Published 18 February, 1991

Dixon et al. reply

P. K. Dixon, L. Wu, S. R. Nagel, B. D. Williams, and J. P. Carini

Phys. Rev. Lett. 66, 960 (1991) - Published 18 February, 1991

First-order transitions between surface phases with different step structures

N. C. Bartelt, T. L. Einstein, and Craig Rottman

Phys. Rev. Lett. 66, 961 (1991) - Published 18 February, 1991

Alerhand et al. Reply

O. L. Alerhand, A. Nihat Berker, J. D. Joannopoulos, David Vanderbilt, R. J. Hamers, and J. E. Demuth

Phys. Rev. Lett. 66, 962 (1991) - Published 18 February, 1991

Comment on ‘‘Interaction of magnetoexcitons and two-dimensional electron gas in the quantum Hall regime’’

M. S. Skolnick, P. E. Simmonds, and T. A. Fisher

Phys. Rev. Lett. 66, 963 (1991) - Published 18 February, 1991

Chen, Fritze, and Nurmikko reply

W. Chen, M. Fritze, and A. V. Nurmikko

Phys. Rev. Lett. 66, 964 (1991) - Published 18 February, 1991

Comment on ‘‘First principles theory of atomic-scale friction’’

J. B. Sokoloff

Phys. Rev. Lett. 66, 965 (1991) - Published 18 February, 1991

Comment on ‘‘Origin of Cu and Zn $L_{2}$ - and $L_{3}$ - $M_{45}$ $M_{45}$ Auger satellites: Breakdown of the sudden approximation’’

J. C. Fuggle and G. A. Sawatzky

Phys. Rev. Lett. 66, 966 (1991) - Published 18 February, 1991

Sarma et al. reply

D. D. Sarma, C. Carbone, P. Sen, R. Cimino, and W. Gudat

Phys. Rev. Lett. 66, 967 (1991) - Published 18 February, 1991

ERRATA

Erratum: ‘‘Turbulent drag reduction by polymers: A quantitative theory’’ [Phys. Rev. Lett. 59, 2059 (1987)]

Gregory Ryskin

Phys. Rev. Lett. 66, 968 (1991) - Published 18 February, 1991

Pinning Forces and Lower Critical Fields in $Y {Ba}_{2} {Cu}_{3} O_{y}$ Crystals: Temperature Dependence and Anisotropy

Dong-Ho Wu and S. Sridhar

Phys. Rev. Lett. 66, 968 (1991) - Published 18 February, 1991