Volume 74, Issue 6

R. A. Kryger, A. Azhari, M. Hellström, J. H. Kelley, T. Kubo, R. Pfaff, E. Ramakrishnan, B. M. Sherrill, M. Thoennessen, S. Yokoyama, R. J. Charity, J. Dempsey, A. Kirov, N. Robertson, D. G. Sarantites, L. G. Sobotka, and J. A. Winger

Phys. Rev. Lett. 74, 860 (1995) - Published 6 February, 1995

Influence of Complex Surface Vibrations on the Fusion of ${}^{58}{Ni}$ + ${}^{60}{Ni}$

A. M. Stefanini, D. Ackermann, L. Corradi, D. R. Napoli, C. Petrache, P. Spolaore, P. Bednarczyk, H. Q. Zhang, S. Beghini, G. Montagnoli, L. Mueller, F. Scarlassara, G. F. Segato, F. Soramel, and N. Rowley

Phys. Rev. Lett. 74, 864 (1995) - Published 6 February, 1995

$N = 40$ Neutron Subshell Closure in the ${}^{68}{Ni}$ Nucleus

R. Broda, B. Fornal, W. Królas, T. Pawłat, D. Bazzacco, S. Lunardi, C. Rossi-Alvarez, R. Menegazzo, G. de Angelis, P. Bednarczyk, J. Rico, D. De Acuña, P. J. Daly, R. H. Mayer, M. Sferrazza, H. Grawe, K. H. Maier, and R. Schubart

Phys. Rev. Lett. 74, 868 (1995) - Published 6 February, 1995

Atomic, Molecular, and Optical Physics

Time-Dependent Optimized Effective Potential

C. A. Ullrich, U. J. Gossmann, and E. K. U. Gross

Phys. Rev. Lett. 74, 872 (1995) - Published 6 February, 1995

Structural Dynamics of Protonated Methane and Acetylene

John S. Tse, Dennis D. Klug, and Kari Laasonen

Phys. Rev. Lett. 74, 876 (1995) - Published 6 February, 1995

Local Field Effects and Electric and Magnetic Dipole Transitions in Dielectrics

G. L. J. A. Rikken and Y. A. R. R. Kessener

Phys. Rev. Lett. 74, 880 (1995) - Published 6 February, 1995

Experimental Determination of the Quantum-Mechanical State of a Molecular Vibrational Mode Using Fluorescence Tomography

T. J. Dunn, I. A. Walmsley, and S. Mukamel

Phys. Rev. Lett. 74, 884 (1995) - Published 6 February, 1995

Neutralization of $H^{-}$ in Energetic Collisions with Multiply Charged Ions

F. Melchert, M. Benner, S. Krüdener, R. Schulze, S. Meuser, K. Huber, E. Salzborn, D. B. Uskov, and L. P. Presnyakov

Phys. Rev. Lett. 74, 888 (1995) - Published 6 February, 1995

Electron-Impact Detachment of $D^{-}$ : Near-Threshold Behavior and the Nonexistence of $D^{2 -}$ Resonances

L. H. Andersen, D. Mathur, H. T. Schmidt, and L. Vejby-Christensen

Phys. Rev. Lett. 74, 892 (1995) - Published 6 February, 1995

Branching Processes in the Dissociative Recombination of $H_{3}^{+}$

S. Datz, G. Sundström, Ch. Biedermann, L. Broström, H. Danared, S. Mannervik, J. R. Mowat, and M. Larsson

Phys. Rev. Lett. 74, 896 (1995) - Published 6 February, 1995

Fine Structure of Thresholds in a Micromaser Pumped with Atom Clusters

G. M. D'Ariano, N. Sterpi, and A. Zucchetti

Phys. Rev. Lett. 74, 900 (1995) - Published 6 February, 1995

Dephasing Dynamics of the Vibronic States of Epitaxial Polydiacetylene Films

T. A. Pham, A. Daunois, J. -C. Merle, J. Le Moigne, and J. -Y. Bigot

Phys. Rev. Lett. 74, 904 (1995) - Published 6 February, 1995

Nonlinear Dynamics: Fluid Dynamics, Classical Optics, Etc.

Stochastic Noise and Chaotic Transients

James A. Blackburn, Niels Grønbech-Jensen, and H. J. T. Smith

Phys. Rev. Lett. 74, 908 (1995) - Published 6 February, 1995

Long-Range Correlations in Systems with Coherent (Quasi)periodic Oscillations

Hugues Chaté, G. Grinstein, and Lei-Han Tang

Phys. Rev. Lett. 74, 912 (1995) - Published 6 February, 1995

Possibility of Generating a High-Power Self-Similar Radiation Pulse from a Free-Electron Laser

T. B. Zhang and T. C. Marshall

Phys. Rev. Lett. 74, 916 (1995) - Published 6 February, 1995

Driven Depinning in Anisotropic Media

Lei-Han Tang, Mehran Kardar, and Deepak Dhar

Phys. Rev. Lett. 74, 920 (1995) - Published 6 February, 1995

Plasma and Beam Physics

Fokker-Planck Calculations with Ionization Dynamics of Short-Pulse Laser-Solid Interactions

R. P. J. Town, A. R. Bell, and S. J. Rose

Phys. Rev. Lett. 74, 924 (1995) - Published 6 February, 1995

Condensed Matter: Structure, Etc.

Terraced Spreading of Chain Molecules via Molecular Dynamics

Joël De Coninck, Umberto D'Ortona, Joel Koplik, and Jayanth R. Banavar

Phys. Rev. Lett. 74, 928 (1995) - Published 6 February, 1995

Shear Effects on Layer Undulation Fluctuations of a Hyperswollen Lamellar Phase

Jun Yamamoto and Hajime Tanaka

Phys. Rev. Lett. 74, 932 (1995) - Published 6 February, 1995

Instantaneous Normal Modes and the Glass Transition

Scott D. Bembenek and Brian B. Laird

Phys. Rev. Lett. 74, 936 (1995) - Published 6 February, 1995

Calculating Accurate Free Energies of Solids Directly from Simulations

J. R. Morris and K. M. Ho

Phys. Rev. Lett. 74, 940 (1995) - Published 6 February, 1995

Thermal Conductivity of ${}^{4}{He}$ near the Superfluid Transition in a Restricted Geometry

A. M. Kahn and Guenter Ahlers

Phys. Rev. Lett. 74, 944 (1995) - Published 6 February, 1995

Theory of the Diffusion of ${}^{4}{He}$ in Liquid ${}^{3}{He}$ in the Fermi Liquid Region

T. G. Culman, D. O. Edwards, and Jizhong He

Phys. Rev. Lett. 74, 948 (1995) - Published 6 February, 1995

Theory of Adsorption and Desorption of $H_{2}$ /Si(001)

E. Pehlke and M. Scheffler

Phys. Rev. Lett. 74, 952 (1995) - Published 6 February, 1995

Quasiperiodic Nanoscale Faceting of High-Index Si Surfaces

A. A. Baski and L. J. Whitman

Phys. Rev. Lett. 74, 956 (1995) - Published 6 February, 1995

Ferroelectric-Monolayer Reconstruction of the SrTi $O_{3}$ (100) Surface

V. Ravikumar, D. Wolf, and V. P. Dravid

Phys. Rev. Lett. 74, 960 (1995) - Published 6 February, 1995

Condensed Matter: Electronic Properties, Etc.

$E$ versus k Relations and Many Body Effects in the Model Insulating Copper Oxide ${Sr}_{2}$ Cu $O_{2}$ ${Cl}_{2}$

B. O. Wells, Z. -X. Shen, A. Matsuura, D. M. King, M. A. Kastner, M. Greven, and R. J. Birgeneau

Phys. Rev. Lett. 74, 964 (1995) - Published 6 February, 1995

One-Particle and Two-Particle Instability of Coupled Luttinger Liquids

Daniel Boies, C. Bourbonnais, and A. -M. S. Tremblay

Phys. Rev. Lett. 74, 968 (1995) - Published 6 February, 1995

Integrability and Ideal Conductance at Finite Temperatures

H. Castella, X. Zotos, and P. Prelovšek

Phys. Rev. Lett. 74, 972 (1995) - Published 6 February, 1995

Optical Spectroscopy of a Two-Dimensional Electron Gas near the Metal-Insulator Transition

Gleb Finkelstein, Hadas Shtrikman, and Israel Bar-Joseph

Phys. Rev. Lett. 74, 976 (1995) - Published 6 February, 1995

Spin and Charge Dynamics of the $t - J$ Model

T. Tohyama, P. Horsch, and S. Maekawa

Phys. Rev. Lett. 74, 980 (1995) - Published 6 February, 1995

Spin Blockades in Linear and Nonlinear Transport through Quantum Dots

Dietmar Weinmann, Wolfgang Häusler, and Bernhard Kramer

Phys. Rev. Lett. 74, 984 (1995) - Published 6 February, 1995

Giant Bulk Photovoltaic Effect under Linearly Polarized X-Ray Synchrotron Radiation

G. Dalba, Y. Soldo, F. Rocca, V. M. Fridkin, and Ph. Sainctavit

Phys. Rev. Lett. 74, 988 (1995) - Published 6 February, 1995

New Metastable Nonmetallic Phase of Europium

C. G. Olson, X. Wu, Z- L. Chen, and D. W. Lynch

Phys. Rev. Lett. 74, 992 (1995) - Published 6 February, 1995

Metallic Screening and Correlation Effects in Superconducting Fullerenes

P. E. Lammert, D. S. Rokhsar, S. Chakravarty, S. Kivelson, and M. I. Salkola

Phys. Rev. Lett. 74, 996 (1995) - Published 6 February, 1995

Quantitative Model for the Superconductivity Suppression in $R_{1 - x} \Pr_{x} {Ba}_{2} {Cu}_{3} O_{7}$ with Different Rare Earths

A. I. Liechtenstein and I. I. Mazin

Phys. Rev. Lett. 74, 1000 (1995) - Published 6 February, 1995

Odd-Time Magnetic Correlations and Chiral Spin Nematics

A. V. Balatsky and Elihu Abrahams

Phys. Rev. Lett. 74, 1004 (1995) - Published 6 February, 1995

In-Plane Anisotropy of the Penetration Depth Due to Superconductivity on the Cu-O Chains in $Y {Ba}_{2} {Cu}_{3} O_{7 - δ}$ , $Y_{2} {Ba}_{4} {Cu}_{7} O_{15 - δ}$ , and Y ${Ba}_{2}$ ${Cu}_{4}$ $O_{8}$

J. L. Tallon, C. Bernhard, U. Binninger, A. Hofer, G. V. M. Williams, E. J. Ansaldo, J. I. Budnick, and Ch. Niedermayer

Phys. Rev. Lett. 74, 1008 (1995) - Published 6 February, 1995

Matrix Models as Solvable Glass Models

L. F. Cugliandolo, J. Kurchan, G. Parisi, and F. Ritort

Phys. Rev. Lett. 74, 1012 (1995) - Published 6 February, 1995

Tuning of Non-Fermi-Liquid Behavior with Pressure

B. Bogenberger and H. v. Löhneysen

Phys. Rev. Lett. 74, 1016 (1995) - Published 6 February, 1995

Ultralow Values of the Absorption Coefficient of Si Obtained from Luminescence

E. Daub and P. Würfel

Phys. Rev. Lett. 74, 1020 (1995) - Published 6 February, 1995

Si $2 p$ Core-Level Shifts at the Si(001)-Si $O_{2}$ Interface: A First-Principles Study

Alfredo Pasquarello, Mark S. Hybertsen, and Roberto Car

Phys. Rev. Lett. 74, 1024 (1995) - Published 6 February, 1995

Cross-Disciplinary Physics

Solvent-Induced Phase Separation in Colloidal Fluids

Hartmut Löwen

Phys. Rev. Lett. 74, 1028 (1995) - Published 6 February, 1995

Volume 74, Issue 6

LETTERS

General Physics

Gravitation and Astrophysics

Elementary Particles and Fields

Nuclear Physics