Volume 71, Issue 9

F. Rathmann, C. Montag, D. Fick, J. Tonhäuser, W. Brückner, H.-G. Gaul, M. Grieser, B. Povh, M. Rall, E. Steffens, F. Stock, Kirsten Zapfe, B. Braun, G. Graw, and W. Haeberli

Phys. Rev. Lett. 71, 1379 (1993) - Published 30 August, 1993

Condensed Matter: Structure, Etc.

Orientational phase transition in ${Na}_{x}$ $C_{60}$ (1<x<3)

T. Yildirim, J. E. Fischer, A. B. Harris, P. W. Stephens, D. Liu, L. Brard, R. M. Strongin, and A. B. Smith, III

Phys. Rev. Lett. 71, 1383 (1993) - Published 30 August, 1993

Tip-surface interactions in scanning tunneling microscopy

K. Cho and J. D. Joannopoulos

Phys. Rev. Lett. 71, 1387 (1993) - Published 30 August, 1993

X-ray diffuse scattering study of static undulations in multilayer films of a liquid-crystalline polymer

R. E. Geer, R. Shashidhar, A. F. Thibodeaux, and R. S. Duran

Phys. Rev. Lett. 71, 1391 (1993) - Published 30 August, 1993

Measurements of the ballistic phonon component resulting from nuclear recoils in crystalline silicon

A. T. Lee, B. Cabrera, B. L. Dougherty, M. J. Penn, and J. G. Pronko

Phys. Rev. Lett. 71, 1395 (1993) - Published 30 August, 1993

Coalescence induced domain growth near a wall during spinodal decomposition

Sandra M. Troian

Phys. Rev. Lett. 71, 1399 (1993) - Published 30 August, 1993

Magnetization of ${}^{3}{He}$ on Grafoil in the low-temperature limit

P. Schiffer, M. T. O’Keefe, D. D. Osheroff, and Hiroshi Fukuyama

Phys. Rev. Lett. 71, 1403 (1993) - Published 30 August, 1993

Two-dimensional antiferromagnetism of solid ${}^{3}{He}$ adsorbed on plated graphite

M. Siqueira, C. P. Lusher, B. P. Cowan, and J. Saunders

Phys. Rev. Lett. 71, 1407 (1993) - Published 30 August, 1993

Oscillation of the lattice relaxation in layer-by-layer epitaxial growth of highly strained materials

J. Massies and N. Grandjean

Phys. Rev. Lett. 71, 1411 (1993) - Published 30 August, 1993

Condensed Matter: Electronic Properties, Etc.

Tuning of the charge-density wave in the halogen-bridged transition-metal linear-chain compounds

M. Alouani, J. W. Wilkins, R. C. Albers, and J. M. Wills

Phys. Rev. Lett. 71, 1415 (1993) - Published 30 August, 1993

Temperature dependence of the Kondo resonance in ${YbAl}_{3}$

L. H. Tjeng, S.-J. Oh, E.-J. Cho, H.-J. Lin, C. T. Chen, G.-H. Gweon, J.-H. Park, J. W. Allen, T. Suzuki, M. S. Makivić, and D. L. Cox

Phys. Rev. Lett. 71, 1419 (1993) - Published 30 August, 1993

Geometrical effects on one-dimensional excitons

Tetsuji Tokihiro and Eiichi Hanamura

Phys. Rev. Lett. 71, 1423 (1993) - Published 30 August, 1993

Variational principle for confined quantum systems

K. R. Brownstein

Phys. Rev. Lett. 71, 1427 (1993) - Published 30 August, 1993

Optical selection rule and oscillator strength of confined exciton system in CuCl thin films

Z. K. Tang, A. Yanase, T. Yasui, Y. Segawa, and K. Cho

Phys. Rev. Lett. 71, 1431 (1993) - Published 30 August, 1993

Magnetophonon shakeup in a Wigner crystal: Applications to tunneling spectroscopy in the quantum Hall regime

Peter Johansson and Jari M. Kinaret

Phys. Rev. Lett. 71, 1435 (1993) - Published 30 August, 1993

Observation of magnetic-field-induced delocalization: Transition from Anderson insulator to quantum Hall conductor

H. W. Jiang, C. E. Johnson, K. L. Wang, and S. T. Hannahs

Phys. Rev. Lett. 71, 1439 (1993) - Published 30 August, 1993

Scaling of the critical current in the quantum Hall effect: A probe of current distribution

N. Q. Balaban, U. Meirav, H. Shtrikman, and Y. Levinson

Phys. Rev. Lett. 71, 1443 (1993) - Published 30 August, 1993

Mesoscopic transport beyond linear response

O. Heinonen and M. D. Johnson

Phys. Rev. Lett. 71, 1447 (1993) - Published 30 August, 1993

Multiple coexisting orientations of flux lines in superconductors with uniaxial anisotropy

A. Sudbø, E. H. Brandt, and D. A. Huse

Phys. Rev. Lett. 71, 1451 (1993) - Published 30 August, 1993

Hall effect of vortices parallel to ${CuO}_{2}$ layers and the origin of the negative Hall anomaly in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7 - δ}$

J. M. Harris, N. P. Ong, and Y. F. Yan

Phys. Rev. Lett. 71, 1455 (1993) - Published 30 August, 1993

Cross-Disciplinary Physics

Model for the evolution of river networks

Robert L. Leheny and Sidney R. Nagel

Phys. Rev. Lett. 71, 1470 (1993) - Published 30 August, 1993

COMMENTS

Comment on ‘‘Structure of silica gels’’

C. M. Sorensen, J. Cai, and N. Lu

Phys. Rev. Lett. 71, 1474 (1993) - Published 30 August, 1993

Cannell, Ferri, and Frisken reply

David S. Cannell, Fabio Ferri, and B. J. Frisken

Phys. Rev. Lett. 71, 1475 (1993) - Published 30 August, 1993