Volume 64, Issue 8

C. James, K. Heller, P. Border, J. Dworkin, O. E. Overseth, R. Rameika, G. Valenti, R. Handler, B. Lundberg, L. Pondrom, M. Sheaff, C. Wilkinson, A. Beretvas, P. Cushman, T. Devlin, K. B. Luk, G. B. Thomson, and R. Whitman

Phys. Rev. Lett. 64, 843 (1990) - Published 19 February, 1990

Nuclear Physics

Kaon and pion production in central Si+Au collisions at 14.6A GeV/c

T. Abbott et al.

Phys. Rev. Lett. 64, 847 (1990) - Published 19 February, 1990

Atomic, Molecular, and Optical Physics

Double and single ionization of helium by high velocity $N^{7 +}$ ions

O. Heber, B. B. Bandong, G. Sampoll, and R. L. Watson

Phys. Rev. Lett. 64, 851 (1990) - Published 19 February, 1990

Observation of quantum beats in the resonance fluorescence of free excitons

V. Langer, H. Stolz, and W. von der Osten

Phys. Rev. Lett. 64, 854 (1990) - Published 19 February, 1990

Magnetic-field-induced laser cooling below the Doppler limit

B. Sheehy, S-Q. Shang, P. van der Straten, S. Hatamian, and H. Metcalf

Phys. Rev. Lett. 64, 858 (1990) - Published 19 February, 1990

Dynamics of atomic ionization suppression and electron localization in an intense high-frequency radiation field

Q. Su, J. H. Eberly, and J. Javanainen

Phys. Rev. Lett. 64, 862 (1990) - Published 19 February, 1990

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

Instabilities of one-dimensional cellular patterns

P. Coullet and G. Iooss

Phys. Rev. Lett. 64, 866 (1990) - Published 19 February, 1990

Reinitiation and feedback in global instabilities of subsonic spatially developing mixing layers

F. F. Grinstein, E. S. Oran, and J. P. Boris

Phys. Rev. Lett. 64, 870 (1990) - Published 19 February, 1990

Increase in regularity by polymer addition during chaotic mixing in two-dimensional flows

C. W. Leong and J. M. Ottino

Phys. Rev. Lett. 64, 874 (1990) - Published 19 February, 1990

Interaction of defects in two-dimensional systems

S. Rica and E. Tirapegui

Phys. Rev. Lett. 64, 878 (1990) - Published 19 February, 1990

Dynamics of immiscible-fluid displacement in a capillary tube

Min-Yao Zhou and Ping Sheng

Phys. Rev. Lett. 64, 882 (1990) - Published 19 February, 1990

Plasma and Beam Physics

Steady-state toroidal plasma around a spherical anode in a magnetic field

R. G. Greaves, D. A. Boyd, J. A. Antoniades, and R. F. Ellis

Phys. Rev. Lett. 64, 886 (1990) - Published 19 February, 1990

Nonlinear evolution of the modulational instability of whistler waves

V. I. Karpman, F. R. Hansen, T. Huld, J. P. Lynov, H. L. Pécseli, and J. Juul Rasmussen

Phys. Rev. Lett. 64, 890 (1990) - Published 19 February, 1990

Condensed Matter: Structure, Etc.

New mode of growth of ${}^{3}B$ in hypercooled ${}^{3}A$ : Evidence of a spin supercurrent

S. T. P. Boyd and G. W. Swift

Phys. Rev. Lett. 64, 894 (1990) - Published 19 February, 1990

Solubility of fluid helium in solid nitrogen at high pressure

Willem L. Vos and Jan A. Schouten

Phys. Rev. Lett. 64, 898 (1990) - Published 19 February, 1990

Quantum kinks and the growth resistance of atomically rough ${}^{4}{He}$ crystals

D. O. Edwards, S. Mukherjee, and M. S. Pettersen

Phys. Rev. Lett. 64, 902 (1990) - Published 19 February, 1990

Smectic-O films

Yves Galerne and Lionel Liebert

Phys. Rev. Lett. 64, 906 (1990) - Published 19 February, 1990

Intrinsic torsional viscosity of nematic liquid crystals

Paul Goldbart and Ping Ao

Phys. Rev. Lett. 64, 910 (1990) - Published 19 February, 1990

Negative moments of current distribution in random resistor networks

Byungnam Kahng

Phys. Rev. Lett. 64, 914 (1990) - Published 19 February, 1990

Reentrant first-order layering transitions in multilayer argon films on graphite

H. S. Youn and G. B. Hess

Phys. Rev. Lett. 64, 918 (1990) - Published 19 February, 1990

Layer-by-layer melting of argon films on graphite: A neutron-diffraction study

J. Z. Larese and Q. M. Zhang

Phys. Rev. Lett. 64, 922 (1990) - Published 19 February, 1990

Roughening phase transition in surface growth

Hong Yan, David Kessler, and L. M. Sander

Phys. Rev. Lett. 64, 926 (1990) - Published 19 February, 1990

Growth and kinetic roughening of quasicrystals and other incommensurate systems

John Toner

Phys. Rev. Lett. 64, 930 (1990) - Published 19 February, 1990

Superheating and supercooling of lead precipitates in aluminum

L. Gråbaek, J. Bohr, E. Johnson, A. Johansen, L. Sarholt-Kristensen, and H. H. Andersen

Phys. Rev. Lett. 64, 934 (1990) - Published 19 February, 1990

High-resolution incoherent imaging of crystals

S. J. Pennycook and D. E. Jesson

Phys. Rev. Lett. 64, 938 (1990) - Published 19 February, 1990

Condensed Matter: Electronic Properties, Etc.

Formation of excited hydrogen states in stimulated desorption from an alkali-promoted surface

P. D. Johnson, A. J. Viescas, P. Nordlander, and J. C. Tully

Phys. Rev. Lett. 64, 942 (1990) - Published 19 February, 1990

Phonon temperature overshoot in GaAs excited by subpicosecond laser pulses

Dai-sik Kim and Peter Y. Yu

Phys. Rev. Lett. 64, 946 (1990) - Published 19 February, 1990

Mott-Hubbard metal-insulator transition in nonbipartite lattices

H. R. Krishnamurthy, C. Jayaprakash, Sanjoy Sarker, and Wolfgang Wenzel

Phys. Rev. Lett. 64, 950 (1990) - Published 19 February, 1990

Quasiparticle trapping from a single-crystal superconductor into a normal-metal film via the proximity effect

D. J. Goldie, N. E. Booth, C. Patel, and G. L. Salmon

Phys. Rev. Lett. 64, 954 (1990) - Published 19 February, 1990

Proximity-effect superconductive tunneling in Nb on InGaAs/InP/InGaAs heterostructures

A. Kastalsky, L. H. Greene, J. B. Barner, and R. Bhat

Phys. Rev. Lett. 64, 958 (1990) - Published 19 February, 1990

Calculation of giant fractional Shapiro steps in Josephson-junction arrays

K. H. Lee, D. Stroud, and J. S. Chung

Phys. Rev. Lett. 64, 962 (1990) - Published 19 February, 1990

Direct observation of dissipative flux motion and pinning by twin boundaries in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7 - δ}$ single crystals

W. K. Kwok, U. Welp, G. W. Crabtree, K. G. Vandervoort, R. Hulscher, and J. Z. Liu

Phys. Rev. Lett. 64, 966 (1990) - Published 19 February, 1990

Oxygen ordering in the basal plane of ${YBa}_{2}$ ${Cu}_{3}$ $O_{z}$ : Ground states

Joachim Stolze

Phys. Rev. Lett. 64, 970 (1990) - Published 19 February, 1990

Superconducting instability of staggered-flux phase in the t-J model

Fu Chun Zhang

Phys. Rev. Lett. 64, 974 (1990) - Published 19 February, 1990

COMMENTS

Comment on ‘‘Disorder and the superfluid transition in liquid ${}^{4}’$

Gary A. Williams

Phys. Rev. Lett. 64, 978 (1990) - Published 19 February, 1990

Chan et al. reply

Moses H. W. Chan, K. I. Blum, S. Q. Murphy, G. K. S. Wong, and J. D. Reppy

Phys. Rev. Lett. 64, 979 (1990) - Published 19 February, 1990

Comment on ‘‘Evidence of eightfold coordination for Co atoms at the ${CoSi}_{2}$ /Si(111) interface’’

J. Zegenhagen, R. T. Tung, J. R. Patel, and P. E. Freeland

Phys. Rev. Lett. 64, 980 (1990) - Published 19 February, 1990

Rossi et al. reply

G. Rossi, X. Jin, A. Santaniello, P. De Padova, and D. Chandesris

Phys. Rev. Lett. 64, 981 (1990) - Published 19 February, 1990