Volume 81, Issue 13

S. Frattini, A. Bracco, S. Leoni, P. Bosetti, B. Herskind, T. Døssing, M. Bergström, G. B. Hagemann, H. Ryde, J. P. Vivien, A. Bagshow, D. Smalley, and A. G. Smith

Phys. Rev. Lett. 81, 2659 (1998) - Published 28 September, 1998

Atomic, Molecular, and Optical Physics

Tunneling Ionization Rates from Arbitrary Potential Wells

G. N. Gibson, G. Dunne, and K. J. Bergquist

Phys. Rev. Lett. 81, 2663 (1998) - Published 28 September, 1998

Probing the Potential Barriers and Intramolecular Electrostatic Interactions in Free Doubly Charged Anions

Lai-Sheng Wang, Chuan-Fan Ding, Xue-Bin Wang, and John B. Nicholas

Phys. Rev. Lett. 81, 2667 (1998) - Published 28 September, 1998

Blackbody Excitation of an Atom Controlled by a Tunable Cavity

K. S. Lai and E. A. Hinds

Phys. Rev. Lett. 81, 2671 (1998) - Published 28 September, 1998

Resonant Enhancement of Parametric Processes via Radiative Interference and Induced Coherence

M. D. Lukin, P. R. Hemmer, M. Löffler, and M. O. Scully

Phys. Rev. Lett. 81, 2675 (1998) - Published 28 September, 1998

Rabi Resonances of a Single Molecule Driven by rf and Laser Fields

Ch. Brunel, B. Lounis, Ph. Tamarat, and M. Orrit

Phys. Rev. Lett. 81, 2679 (1998) - Published 28 September, 1998

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, etc.

Radiation Transfer Model of Self-Trapping Spatially Incoherent Radiation by Nonlinear Media

Vladimir V. Shkunov and Dana Z. Anderson

Phys. Rev. Lett. 81, 2683 (1998) - Published 28 September, 1998

Multiscaling in Models of Magnetohydrodynamic Turbulence

Abhik Basu, Anirban Sain, Sujan K. Dhar, and Rahul Pandit

Phys. Rev. Lett. 81, 2687 (1998) - Published 28 September, 1998

Plasma and Beam Physics

Exact Solution of Vlasov Equations for Quasineutral Expansion of Plasma Bunch into Vacuum

D. S. Dorozhkina and V. E. Semenov

Phys. Rev. Lett. 81, 2691 (1998) - Published 28 September, 1998

Condensed Matter: Structure, etc.

Reflection High Energy Positron Diffraction from a Si(111) Surface

A. Kawasuso and S. Okada

Phys. Rev. Lett. 81, 2695 (1998) - Published 28 September, 1998

Appearance of Ferrielectric Phases in a Confined Liquid Crystal Investigated by Photon Correlation Spectroscopy

Yuri P. Panarin, Charles Rosenblatt, and Fouad M. Aliev

Phys. Rev. Lett. 81, 2699 (1998) - Published 28 September, 1998

Anisotropy-Induced Liquid-Crystal Configurational Transitions

Huairen Zeng and Daniele Finotello

Phys. Rev. Lett. 81, 2703 (1998) - Published 28 September, 1998

FEATURED IN PHYSICS

Diffraction of Fast Electrons on the Fullerene $C_{60}$ Molecule

Leonid G. Gerchikov, Peotr V. Efimov, Valerii M. Mikoushkin, and Andrey V. Solov'yov

Phys. Rev. Lett. 81, 2707 (1998) - Published 28 September, 1998

Crystal Structure of Cesium-V

U. Schwarz, K. Takemura, M. Hanfland, and K. Syassen

Phys. Rev. Lett. 81, 2711 (1998) - Published 28 September, 1998

Scaling Theory of the Hall-Petch Relation for Multilayers

Lawrence H. Friedman and D. C. Chrzan

Phys. Rev. Lett. 81, 2715 (1998) - Published 28 September, 1998

Multisite Disordered Structure of Ice VII to 20 GPa

R. J. Nelmes, J. S. Loveday, W. G. Marshall, G. Hamel, J. M. Besson, and S. Klotz

Phys. Rev. Lett. 81, 2719 (1998) - Published 28 September, 1998

Sevenfold Coordinated MgSe: Experimental Internal Atom Position Determination to 146 GPa, Diffraction Studies to 202 GPa, and Theoretical Studies to 500 GPa

Arthur L. Ruoff, Ting Li, Allen C. Ho, Min-Fan Pai, Huan Luo, Ray G. Greene, Chandrabhas Narayana, Jay C. Molstad, Steven S. Trail, Francis J. DiSalvo, Jr., and P. E. van Camp

Phys. Rev. Lett. 81, 2723 (1998) - Published 28 September, 1998

Length Scale of Dynamic Heterogeneities at the Glass Transition Determined by Multidimensional Nuclear Magnetic Resonance

U. Tracht, M. Wilhelm, A. Heuer, H. Feng, K. Schmidt-Rohr, and H. W. Spiess

Phys. Rev. Lett. 81, 2727 (1998) - Published 28 September, 1998

Evidence for Capillary Waves on Dewetted Polymer Film Surfaces: A Combined X-ray and Atomic Force Microscopy Study

M. Tolan, O. H. Seeck, J.-P. Schlomka, W. Press, J. Wang, S. K. Sinha, Z. Li, M. H. Rafailovich, and J. Sokolov

Phys. Rev. Lett. 81, 2731 (1998) - Published 28 September, 1998

Ripple Wave Vector Rotation in Anisotropic Crystal Sputtering

S. Rusponi, G. Costantini, C. Boragno, and U. Valbusa

Phys. Rev. Lett. 81, 2735 (1998) - Published 28 September, 1998

Hexagonally Reconstructed Islands and Anisotropic Diffusion for Au/Au(100)

Miki Nomura and Xiao-Qian Wang

Phys. Rev. Lett. 81, 2739 (1998) - Published 28 September, 1998

Current-Induced Step Bending Instability on Vicinal Surfaces

Da-Jiang Liu, John D. Weeks, and Daniel Kandel

Phys. Rev. Lett. 81, 2743 (1998) - Published 28 September, 1998

Condensed Matter: Electronic Properties, etc.

Layered Ruthenium Oxides: From Band Metal to Mott Insulator

A. V. Puchkov, M. C. Schabel, D. N. Basov, T. Startseva, G. Cao, T. Timusk, and Z.-X. Shen

Phys. Rev. Lett. 81, 2747 (1998) - Published 28 September, 1998

Hidden Kondo Effect in a Correlated Electron Chain

A. A. Zvyagin and H. Johannesson

Phys. Rev. Lett. 81, 2751 (1998) - Published 28 September, 1998

Metal-Insulator Crossover in the Boson-Fermion Model in Infinite Dimensions

J. M. Robin, A. Romano, and J. Ranninger

Phys. Rev. Lett. 81, 2755 (1998) - Published 28 September, 1998

Nonlinear Nano-Optics: Probing One Exciton at a Time

N. H. Bonadeo, Gang Chen, D. Gammon, D. S. Katzer, D. Park, and D. G. Steel

Phys. Rev. Lett. 81, 2759 (1998) - Published 28 September, 1998

Quantum Shot Noise at Local Tunneling Contacts on Mesoscopic Multiprobe Conductors

Thomas Gramespacher and Markus Büttiker

Phys. Rev. Lett. 81, 2763 (1998) - Published 28 September, 1998

Conductance Correlations near Integer Quantum Hall Transitions

Božidar Jovanović and Ziqiang Wang

Phys. Rev. Lett. 81, 2767 (1998) - Published 28 September, 1998

Substrate Mediated Suppression of Postcollision Interaction Effects

B. Kassühlke, R. Romberg, P. Averkamp, and P. Feulner

Phys. Rev. Lett. 81, 2771 (1998) - Published 28 September, 1998

Evolution of the Density of States Gap in a Disordered Superconductor

Carey Huscroft and Richard T. Scalettar

Phys. Rev. Lett. 81, 2775 (1998) - Published 28 September, 1998

Order from Disorder: Nonmagnetic Impurities in the Spin-Gap Phase of the Cuprates

Catherine Pépin and Patrick A. Lee

Phys. Rev. Lett. 81, 2779 (1998) - Published 28 September, 1998

Vortex Phase Diagram for Mesoscopic Superconducting Disks

V. A. Schweigert, F. M. Peeters, and P. Singha Deo

Phys. Rev. Lett. 81, 2783 (1998) - Published 28 September, 1998

Order Parameter for a Diamagnetic Phase Transition

A. Gordon, M. A. Itskovsky, I. D. Vagner, and P. Wyder

Phys. Rev. Lett. 81, 2787 (1998) - Published 28 September, 1998

Suppression of Antiferromagnetic Order by Light Hole Doping in ${La}_{2} {Cu}_{1 - x} {Li}_{x} O_{4}$ : A ${}^{139}L a$ NQR Study

B. J. Suh, P. C. Hammel, Y. Yoshinari, J. D. Thompson, J. L. Sarrao, and Z. Fisk

Phys. Rev. Lett. 81, 2791 (1998) - Published 28 September, 1998

Exchange Coupling in Ferromagnet/Antiferromagnet Bilayers with Comparable $T_{C}$ and $T_{N}$

X. W. Wu and C. L. Chien

Phys. Rev. Lett. 81, 2795 (1998) - Published 28 September, 1998

Enhanced Magnetoresistance in Insulating Granular Systems: Evidence for Higher-Order Tunneling

S. Mitani, S. Takahashi, K. Takanashi, K. Yakushiji, S. Maekawa, and H. Fujimori

Phys. Rev. Lett. 81, 2799 (1998) - Published 28 September, 1998

Breakdown of the $k$ -Conservation Rule in Si Nanocrystals

D. Kovalev, H. Heckler, M. Ben-Chorin, G. Polisski, M. Schwartzkopff, and F. Koch

Phys. Rev. Lett. 81, 2803 (1998) - Published 28 September, 1998

Lifetime of Negative Ion Resonances and the Density of Free Electron States: $O_{2}$ Isolated in an Argon Matrix

M. Michaud, M. Lepage, and L. Sanche

Phys. Rev. Lett. 81, 2807 (1998) - Published 28 September, 1998

Cross-Disciplinary Physics

Wave Instabilities in Excitable Media with Fast Inhibitor Diffusion

V. S. Zykov, A. S. Mikhailov, and S. C. Müller

Phys. Rev. Lett. 81, 2811 (1998) - Published 28 September, 1998

Excitation Wave Breaking in Excitable Media with Linear Shear Flow

V. N. Biktashev, A. V. Holden, M. A. Tsyganov, J. Brindley, and N. A. Hill

Phys. Rev. Lett. 81, 2815 (1998) - Published 28 September, 1998

Effect of Strain on the Reactivity of Metal Surfaces

M. Mavrikakis, B. Hammer, and J. K. Nørskov

Phys. Rev. Lett. 81, 2819 (1998) - Published 28 September, 1998

Surfactant Curvilinear Diffusion in Giant Wormlike Micelles

R. Angelico, U. Olsson, G. Palazzo, and A. Ceglie

Phys. Rev. Lett. 81, 2823 (1998) - Published 28 September, 1998

Effect of Correlated Fluctuations of Synapses in the Performance of Neural Networks

J. Marro, P. L. Garrido, and J. J. Torres

Phys. Rev. Lett. 81, 2827 (1998) - Published 28 September, 1998

COMMENTS

Comment on “Comparison of Polarization Observables in Electron Scattering from the Proton and Deuteron”

F. Klein, E. W. Otten, H. Schmieden, and Th. Walcher

Phys. Rev. Lett. 81, 2831 (1998) - Published 28 September, 1998

Lourie et al. Reply:

R. W. Lourie, J. M. Finn, J. I. McIntyre, B. D. Milbrath, C. F. Perdrisat, and P. E. Ulmer

Phys. Rev. Lett. 81, 2832 (1998) - Published 28 September, 1998

Comment on “Strongly Interacting Photons in a Nonlinear Cavity”

Philippe Grangier, Daniel F. Walls, and Klaus M. Gheri

Phys. Rev. Lett. 81, 2833 (1998) - Published 28 September, 1998

Comment on “Magnetospectroscopy of Bound Phonons in High Purity GaAs”

M. L. Sadowski, G. Martinez, and M. Grynberg

Phys. Rev. Lett. 81, 2834 (1998) - Published 28 September, 1998

Chen, Liu, and Shen Reply:

Zhonghui Chen, Pulin Liu, and S. C. Shen

Phys. Rev. Lett. 81, 2835 (1998) - Published 28 September, 1998

ERRATA

Erratum: Strongly Interacting Photons in a Nonlinear Cavity [Phys. Rev. Lett. 79, 1467 (1997)]

A. Imamoǧlu, H. Schmidt, G. Woods, and M. Deutsch

Phys. Rev. Lett. 81, 2836 (1998) - Published 28 September, 1998

Erratum: Nonadiabatic Quantum Brownian Rectifiers [Phys. Rev. Lett. 81, 649 (1998)]

Igor Goychuk, Milena Grifoni, and Peter Hänggi

Phys. Rev. Lett. 81, 2837 (1998) - Published 28 September, 1998