Volume 75, Issue 9

F. Attallah, M. Aiche, J. F. Chemin, J. N. Scheurer, W. E. Meyerhof, J. P. Grandin, P. Aguer, G. Bogaert, J. Kiener, A. Lefebvre, J. P. Thibaud, and C. Grunberg

Phys. Rev. Lett. 75, 1715 (1995) - Published 28 August, 1995

Study of the Unstable Nucleus ${}^{10}L i$ in Stripping Reactions of the Radioactive Projectiles ${}^{11}B e$ and ${}^{11}L i$

M. Zinser et al.

Phys. Rev. Lett. 75, 1719 (1995) - Published 28 August, 1995

Atomic, Molecular, and Optical Physics

Transient Molecular-Ion Formation in Rydberg-Electron Capture

K. B. MacAdam, J. C. Day, J. C. Aguilar, D. M. Homan, A. D. MacKellar, and M. J. Cavagnero

Phys. Rev. Lett. 75, 1723 (1995) - Published 28 August, 1995

Structure of Binary Quantum Clusters

Charusita Chakravarty

Phys. Rev. Lett. 75, 1727 (1995) - Published 28 August, 1995

Temperature Dependence of the Optical Response of Small, Open Shell Sodium Clusters

Christoph Ellert, Martin Schmidt, Christina Schmitt, Thomas Reiners, and Hellmut Haberland

Phys. Rev. Lett. 75, 1731 (1995) - Published 28 August, 1995

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

Chaos in Andreev Billiards

Ioan Kosztin, Dmitrii L. Maslov, and Paul M. Goldbart

Phys. Rev. Lett. 75, 1735 (1995) - Published 28 August, 1995

Coherent Backscattering of Light from Amplifying Random Media

Diederik S. Wiersma, Meint P. van Albada, and Ad Lagendijk

Phys. Rev. Lett. 75, 1739 (1995) - Published 28 August, 1995

Thermally Induced Fluctuations below the Onset of Rayleigh-Bénard Convection

Mingming Wu, Guenter Ahlers, and David S. Cannell

Phys. Rev. Lett. 75, 1743 (1995) - Published 28 August, 1995

Stability of a Solitary Pulse against Wave Packet Disturbances in an Active Medium

Hsueh-Chia Chang, Evgeny A. Demekhin, and Dmitry I. Kopelevich

Phys. Rev. Lett. 75, 1747 (1995) - Published 28 August, 1995

$k$ Spectrum of Passive Scalars in Lagrangian Chaotic Fluid Flows

Thomas M. Antonsen, Jr., Zhencan Frank Fan, and Edward Ott

Phys. Rev. Lett. 75, 1751 (1995) - Published 28 August, 1995

Plasma and Beam Physics

Intense Far-Infrared Free-Electron Laser Pulses with a Length of Six Optical Cycles

G. M. H. Knippels, R. F. X. A. M. Mols, A. F. G. van der Meer, D. Oepts, and P. W. van Amersfoort

Phys. Rev. Lett. 75, 1755 (1995) - Published 28 August, 1995

Dynamics of Core Electron Temperature Fluctuations during Sawtooth Oscillations on TEXT-U

Christopher Watts and R. F. Gandy

Phys. Rev. Lett. 75, 1759 (1995) - Published 28 August, 1995

High-β Disruption in Tokamaks

W. Park, E. D. Fredrickson, A. Janos, J. Manickam, and W. M. Tang

Phys. Rev. Lett. 75, 1763 (1995) - Published 28 August, 1995

Condensed Matter: Structure, Etc.

Dynamic Evolution of Pyramid Structures during Growth of Epitaxial Fe $($ 001 $)$ Films

K. Thürmer, R. Koch, M. Weber, and K. H. Rieder

Phys. Rev. Lett. 75, 1767 (1995) - Published 28 August, 1995

Atomic Structure of the $c$ ( $4 \times 2$ ) Surface Reconstruction of Ge(001) as Determined by X-Ray Diffraction

S. Ferrer, X. Torrelles, V. H. Etgens, H. A. van der Vegt, and P. Fajardo

Phys. Rev. Lett. 75, 1771 (1995) - Published 28 August, 1995

Hysteresis and Instability of a Driven Interface in a Periodic Potential

Eugene B. Kolomeisky, Tatjana Curcic, and Joseph P. Straley

Phys. Rev. Lett. 75, 1775 (1995) - Published 28 August, 1995

Microscopic Structure and Intermolecular Potential in Liquid Deuterium

M. Zoppi, U. Bafile, E. Guarini, F. Barocchi, R. Magli, and M. Neumann

Phys. Rev. Lett. 75, 1779 (1995) - Published 28 August, 1995

Glass States and Freezing Transition in $({NH}_{4} I)_{x} (KI)_{1 - x}$

M. Winterlich, R. Böhmer, and A. Loidl

Phys. Rev. Lett. 75, 1783 (1995) - Published 28 August, 1995

Diffusion and Drift of Charge Carriers in Molecularly Doped Polymers

Akiko Hirao, Hideyuki Nishizawa, and Masami Sugiuchi

Phys. Rev. Lett. 75, 1787 (1995) - Published 28 August, 1995

Phase Separation Dynamics under Stirring

A. M. Lacasta, J. M. Sancho, and F. Sagués

Phys. Rev. Lett. 75, 1791 (1995) - Published 28 August, 1995

Driven Interfaces with Phase Disorder

Joachim Krug

Phys. Rev. Lett. 75, 1795 (1995) - Published 28 August, 1995

Pumping Liquid Crystals

Zhong Zou and Noel Clark

Phys. Rev. Lett. 75, 1799 (1995) - Published 28 August, 1995

Phase Diagram and Orientational Order in a Biaxial Lattice Model: A Monte Carlo Study

F. Biscarini, C. Chiccoli, P. Pasini, F. Semeria, and C. Zannoni

Phys. Rev. Lett. 75, 1803 (1995) - Published 28 August, 1995

Zn under Pressure: A Singularity in the hcp Structure at $c / a = \sqrt{3}$

Takemura Kenichi

Phys. Rev. Lett. 75, 1807 (1995) - Published 28 August, 1995

Signatures of Bulk and Surface Arsenic Antisite Defects in GaAs(110)

R. B. Capaz, K. Cho, and J. D. Joannopoulos

Phys. Rev. Lett. 75, 1811 (1995) - Published 28 August, 1995

Impulsive Softening of Coherent Phonons in Tellurium

S. Hunsche, K. Wienecke, T. Dekorsy, and H. Kurz

Phys. Rev. Lett. 75, 1815 (1995) - Published 28 August, 1995

Anharmonic Phonon Lifetimes in Semiconductors from Density-Functional Perturbation Theory

Alberto Debernardi, Stefano Baroni, and Elisa Molinari

Phys. Rev. Lett. 75, 1819 (1995) - Published 28 August, 1995

Condensed Matter: Electronic Properties, Etc.

Quantum Magnetism of CuGe $O_{3}$

G. Castilla, S. Chakravarty, and V. J. Emery

Phys. Rev. Lett. 75, 1823 (1995) - Published 28 August, 1995

Observation of Plasmon-Optic Phonon Coupled Modes in GaAs/AlGaAs Resonant Tunneling Structures via Acoustic Phonon Decay Products

M. Giltrow, A. Kozorezov, M. Sahraoui-Tahar, J. K. Wigmore, J. H. Davies, C. R. Stanley, B. Vogel, and C. D. W. Wilkinson

Phys. Rev. Lett. 75, 1827 (1995) - Published 28 August, 1995

ac Josephson Effect in a Single Quantum Channel

D. Averin and A. Bardas

Phys. Rev. Lett. 75, 1831 (1995) - Published 28 August, 1995

Nature of the Irreversibility Line in High-Temperature Superconductors

M. I. J. Probert and A. I. M. Rae

Phys. Rev. Lett. 75, 1835 (1995) - Published 28 August, 1995

Magnetic Domain Structure in Ultrathin Films

Gabriel Bochi, H. J. Hug, D. I. Paul, B. Stiefel, A. Moser, I. Parashikov, H.-J. Güntherodt, and R. C. O'Handley

Phys. Rev. Lett. 75, 1839 (1995) - Published 28 August, 1995

Evidence of a Surface-Mediated Magnetically Induced Miscibility Gap in Co-Pt Alloy Thin Films

P. W. Rooney, A. L. Shapiro, M. Q. Tran, and F. Hellman

Phys. Rev. Lett. 75, 1843 (1995) - Published 28 August, 1995

Giant Near-90° Coupling in Epitaxial CoFe/Mn/CoFe Sandwich Structures

M. E. Filipkowski, J. J. Krebs, G. A. Prinz, and C. J. Gutierrez

Phys. Rev. Lett. 75, 1847 (1995) - Published 28 August, 1995

Cross-Disciplinary Physics

Long-Range Electrostatic Attraction between Similar, Charge-Neutral Walls

Patrick Kékicheff and Olivier Spalla

Phys. Rev. Lett. 75, 1851 (1995) - Published 28 August, 1995

Scattering and Imaging with Diffusing Temporal Field Correlations

D. A. Boas, L. E. Campbell, and A. G. Yodh

Phys. Rev. Lett. 75, 1855 (1995) - Published 28 August, 1995

Aggregation Patterns in Stressed Bacteria

Lev Tsimring, Herbert Levine, Igor Aranson, Eshel Ben-Jacob, Inon Cohen, Ofer Shochet, and William N. Reynolds

Phys. Rev. Lett. 75, 1859 (1995) - Published 28 August, 1995

Neurocomputation by Reaction Diffusion

Ping Liang

Phys. Rev. Lett. 75, 1863 (1995) - Published 28 August, 1995

Volume 75, Issue 9

LETTERS

General Physics

Gravitation and Astrophysics

Elementary Particles and Fields

Nuclear Physics