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Physical Review Letters

Volume 75, Issue 6

7 August 1995

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LETTERS

General Physics

Stability of Matter in Magnetic Fields

Elliott H. Lieb, Michael Loss, and Jan Philip Solovej

Phys. Rev. Lett. 75, 985 (1995) - Published 7 August, 1995

Long-Time Evolution of Semiclassical States in Anharmonic Potentials

P. Kasperkovitz and M. Peev

Phys. Rev. Lett. 75, 990 (1995) - Published 7 August, 1995

Renormalized Coupling Constant for the Three-Dimensional Ising Model

George A. Baker, Jr. and Naoki Kawashima

Phys. Rev. Lett. 75, 994 (1995) - Published 7 August, 1995

Gravitation and Astrophysics

Fermions Destabilize Electroweak Strings

Stephen G. Naculich

Phys. Rev. Lett. 75, 998 (1995) - Published 7 August, 1995

Elementary Particles and Fields

Finite Width Effects and Gauge Invariance in Radiative W Production and Decay

U. Baur and D. Zeppenfeld

Phys. Rev. Lett. 75, 1002 (1995) - Published 7 August, 1995

Measurement of Charged and Neutral Current $e^{-} p$ Deep Inelastic Scattering Cross Sections at High $Q^{2}$

M. Derrick et al. (ZEUS Collaboration)

Phys. Rev. Lett. 75, 1006 (1995) - Published 7 August, 1995

Search for Second Generation Leptoquarks in $p \bar{p}$ Collisions at $\sqrt{s} = 1.8$ TeV

F. Abe et al. (CDF Collaboration)

Phys. Rev. Lett. 75, 1012 (1995) - Published 7 August, 1995

Limits on $WWZ$ and $WW γ$ Couplings from $WW$ and $WZ$ Production in $p \bar{p}$ Collisions at $\sqrt s = 1.8 TeV$

F. Abe et al. (CDF Collaboration)

Phys. Rev. Lett. 75, 1017 (1995) - Published 7 August, 1995

Search for $W$ Boson Pair Production in $p \bar{p}$ Collisions at $\sqrt{s} = 1.8$ TeV

S. Abachi et al. (D0 Collaboration)

Phys. Rev. Lett. 75, 1023 (1995) - Published 7 August, 1995

Limits on the Anomalous $ZZ γ$ and $Z γ γ$ Couplings in $p \bar{p}$ Collisions at $\sqrt{s} = 1.8$ TeV

S. Abachi et al. (D0 Collaboration)

Phys. Rev. Lett. 75, 1028 (1995) - Published 7 August, 1995

Measurement of the $WW γ$ Gauge Boson Couplings in $p \bar{p}$ Collisions at $\sqrt{s} = 1.8$ TeV

S. Abachi et al. (D0 Collaboration)

Phys. Rev. Lett. 75, 1034 (1995) - Published 7 August, 1995

Nuclear Physics

Probing the Nuclear Liquid-Gas Phase Transition

J. Pochodzalla et al.

Phys. Rev. Lett. 75, 1040 (1995) - Published 7 August, 1995

Temperature Fluctuations in Multiparticle Production

L. Stodolsky

Phys. Rev. Lett. 75, 1044 (1995) - Published 7 August, 1995

$π NN$ Coupling from High Precision $np$ Charge Exchange at 162 MeV

T. E. O. Ericson, B. Loiseau, J. Nilsson, N. Olsson, J. Blomgren, H. Condé, K. Elmgren, O. Jonsson, L. Nilsson, P.-U. Renberg, A. Ringbom, T. Rönnqvist, G. Tibell, and R. Zorro

Phys. Rev. Lett. 75, 1046 (1995) - Published 7 August, 1995

Contrasting Behavior in Octupole Structures Observed at High Spin in $^{220}$ Ra and $^{222}$ Th

J. F. Smith, J. F. C. Cocks, N. Schulz, M. Aïche, M. Bentaleb, P. A. Butler, F. Hannachi, G. D. Jones, P. M. Jones, R. Julin, S. Juutinen, R. Kulessa, E. Lubkiewicz, A. Płochocki, F. Riess, E. Ruchowska, A. Savelius, J. C. Sens, J. Simpson, and E. Wolf

Phys. Rev. Lett. 75, 1050 (1995) - Published 7 August, 1995

Atomic, Molecular, and Optical Physics

Observation of Direct Ionization of He by Highly Charged Ions at Low Velocity

W. Wu, C. L. Cocke, J. P. Giese, F. Melchert, M. L. A. Raphaelian, and M. Stöckli

Phys. Rev. Lett. 75, 1054 (1995) - Published 7 August, 1995

Novel Time of Flight Instrument for Doppler Free Kinetic Energy Release Spectroscopy

M. Lundqvist, P. Baltzer, D. Edvardsson, L. Karlsson, and B. Wannberg

Phys. Rev. Lett. 75, 1058 (1995) - Published 7 August, 1995

Large Angle Elastic Scattering of Electrons from Ar $^{+}$

J. B. Greenwood, I. D. Williams, and P. McGuinness

Phys. Rev. Lett. 75, 1062 (1995) - Published 7 August, 1995

Dissociative Recombination of ${HD}^{+}$ with an Ultracold Electron Beam in a Cooler Ring

T. Tanabe, I. Katayama, H. Kamegaya, K. Chida, Y. Arakaki, T. Watanabe, M. Yoshizawa, M. Saito, Y. Haruyama, K. Hosono, K. Hatanaka, T. Honma, K. Noda, S. Ohtani, and H. Takagi

Phys. Rev. Lett. 75, 1066 (1995) - Published 7 August, 1995

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

Chaoticlike Behavior in a Quantum System without Classical Counterpart

Y. Ashkenazy, L. P. Horwitz, J. Levitan, M. Lewkowicz, and Y. Rothschild

Phys. Rev. Lett. 75, 1070 (1995) - Published 7 August, 1995

Efficient Soft X-Ray Lasing at 6 to 8 nm with Nickel-like Lanthanide Ions

H. Daido, Y. Kato, K. Murai, S. Ninomiya, R. Kodama, G. Yuan, Y. Oshikane, M. Takagi, H. Takabe, and F. Koike

Phys. Rev. Lett. 75, 1074 (1995) - Published 7 August, 1995

Plasma and Beam Physics

Influence of Spatial and Temporal Laser Beam Smoothing on Stimulated Brillouin Scattering in Filamentary Laser Light

R. L. Berger, B. F. Lasinski, A. B. Langdon, T. B. Kaiser, B. B. Afeyan, B. I. Cohen, C. H. Still, and E. A. Williams

Phys. Rev. Lett. 75, 1078 (1995) - Published 7 August, 1995

Time-Dependent Channel Formation in a Laser-Produced Plasma

P. E. Young, M. E. Foord, J. H. Hammer, W. L. Kruer, M. Tabak, and S. C. Wilks

Phys. Rev. Lett. 75, 1082 (1995) - Published 7 August, 1995

Effect of Collisionality and Diamagnetism on the Plasma Dynamo

H. Ji, Y. Yagi, K. Hattori, A. F. Almagri, S. C. Prager, Y. Hirano, J. S. Sarff, T. Shimada, Y. Maejima, and K. Hayase

Phys. Rev. Lett. 75, 1086 (1995) - Published 7 August, 1995

Internal Magnetic Turbulence Measurement in Plasma by Cross Polarization Scattering

X. L. Zou, L. Colas, M. Paume, J. M. Chareau, L. Laurent, P. Devynck, and D. Gresillon

Phys. Rev. Lett. 75, 1090 (1995) - Published 7 August, 1995

Condensed Matter: Structure, Etc.

Nonlinear Dynamics of Stiff Polymers

Raymond E. Goldstein and Stephen A. Langer

Phys. Rev. Lett. 75, 1094 (1995) - Published 7 August, 1995

Anomalous Ion Diffusion in Dense Dipolar Liquids

Ranjit Biswas, Srabani Roy, and Biman Bagchi

Phys. Rev. Lett. 75, 1098 (1995) - Published 7 August, 1995

Scattering of Second Sound Waves by Quantum Vorticity

Fernando Lund and Victor Steinberg

Phys. Rev. Lett. 75, 1102 (1995) - Published 7 August, 1995

Superfluid-Insulator Transition in ${}^{4}H e$ Films Adsorbed in Vycor Glass

P. A. Crowell, F. W. Van Keuls, and J. D. Reppy

Phys. Rev. Lett. 75, 1106 (1995) - Published 7 August, 1995

Relaxation Kinetics of Nonlinear Systems Coupled to a Nonequilibrium Bath

Mark M. Millonas and Chris Ray

Phys. Rev. Lett. 75, 1110 (1995) - Published 7 August, 1995

Monte Carlo Studies of Ternary Semiconductor Alloys: Application to the ${Si}_{1 - x - y} {Ge}_{x} C_{y}$ System

P. C. Kelires

Phys. Rev. Lett. 75, 1114 (1995) - Published 7 August, 1995

Chemistry and Structure of CdO/Ag{222} Heterophase Interfaces

D. K. Chan, D. N. Seidman, and K. L. Merkle

Phys. Rev. Lett. 75, 1118 (1995) - Published 7 August, 1995

Real Time Spectroellipsometry Study of the Evolution of Bonding in Diamond Thin Films during Nucleation and Growth

Byungyou Hong, M. Wakagi, W. Drawl, R. Messier, and R. W. Collins

Phys. Rev. Lett. 75, 1122 (1995) - Published 7 August, 1995

Condensed Matter: Electronic Properties, Etc.

Band Theory for Ground-State Properties and Excitation Spectra of Perovskite $La M O_{3}$ ( $M =$ Mn, Fe, Co, Ni)

D. D. Sarma, N. Shanthi, S. R. Barman, N. Hamada, H. Sawada, and K. Terakura

Phys. Rev. Lett. 75, 1126 (1995) - Published 7 August, 1995

Size Dependence of Excitons in Silicon Nanocrystals

Nicola A. Hill and K. Birgitta Whaley

Phys. Rev. Lett. 75, 1130 (1995) - Published 7 August, 1995

Bulk Lattice Instability in II-VI Semiconductors and Its Effect on Impurity Compensation

C. H. Park and D. J. Chadi

Phys. Rev. Lett. 75, 1134 (1995) - Published 7 August, 1995

Resonant Optical Second Harmonic Generation at the Steps of Vicinal Si(001)

J. R. Power, J. D. O'Mahony, S. Chandola, and J. F. McGilp

Phys. Rev. Lett. 75, 1138 (1995) - Published 7 August, 1995

Manifestations of Classical Chaos in the Energy Level Spectrum of a Quantum Well

T. M. Fromhold, P. B. Wilkinson, F. W. Sheard, L. Eaves, J. Miao, and G. Edwards

Phys. Rev. Lett. 75, 1142 (1995) - Published 7 August, 1995

Direct Creation of Quantum Well Excitons by Electron Resonant Tunneling

H. Cao, G. Klimovitch, G. Björk, and Y. Yamamoto

Phys. Rev. Lett. 75, 1146 (1995) - Published 7 August, 1995

Energy Gap Induced by Impurity Scattering: New Phase Transition in Anisotropic Superconductors

Sergei V. Pokrovsky and Valery L. Pokrovsky

Phys. Rev. Lett. 75, 1150 (1995) - Published 7 August, 1995

Parity Fluctuations between Coulomb Blockaded Superconducting Islands

Boldizsár Jankó and Vinay Ambegaokar

Phys. Rev. Lett. 75, 1154 (1995) - Published 7 August, 1995

Nonadiabatic Superconductivity: Electron-Phonon Interaction Beyond Migdal's Theorem

C. Grimaldi, L. Pietronero, and S. Strässler

Phys. Rev. Lett. 75, 1158 (1995) - Published 7 August, 1995

Microwave-Induced “Somersault Effect” in Flow of Josephson Current through a Quantum Constriction

L. Y. Gorelik, V. S. Shumeiko, R. I. Shekhter, G. Wendin, and M. Jonson

Phys. Rev. Lett. 75, 1162 (1995) - Published 7 August, 1995

Separation of the Irreversibility and Melting Lines in B $i_{2}$ S $r_{2}$ CaC $u_{2}$ $O_{8}$ Crystals

D. Majer, E. Zeldov, and M. Konczykowski

Phys. Rev. Lett. 75, 1166 (1995) - Published 7 August, 1995

Energy Barriers to Motion of Flux Lines in Random Media

Lev V. Mikheev, Barbara Drossel, and Mehran Kardar

Phys. Rev. Lett. 75, 1170 (1995) - Published 7 August, 1995

Antiferromagnetic Ordering and Spin Structure in the Organic Conductor, $κ$ -(BEDT-TTF $)_{2}$ Cu[N(CN $)_{2}$ ]Cl

K. Miyagawa, A. Kawamoto, Y. Nakazawa, and K. Kanoda

Phys. Rev. Lett. 75, 1174 (1995) - Published 7 August, 1995

Antiferromagnetism and Its Relation to the Superconducting Phases of UP $t_{3}$

E. D. Isaacs, P. Zschack, C. L. Broholm, C. Burns, G. Aeppli, A. P. Ramirez, T. T. M. Palstra, R. W. Erwin, N. Stücheli, and E. Bucher

Phys. Rev. Lett. 75, 1178 (1995) - Published 7 August, 1995

Surface States and Angle-Resolved Photoemission Spectra from ${Nd}_{2 - x} {Ce}_{x} {CuO}_{4}$ Superconductor

M. Lindroos and A. Bansil

Phys. Rev. Lett. 75, 1182 (1995) - Published 7 August, 1995

Broken Symmetry of Two-Component $ν = 1 / 2$ Quantum Hall States

Tin-Lun Ho

Phys. Rev. Lett. 75, 1186 (1995) - Published 7 August, 1995

Glassiness in a Model without Energy Barriers

Felix Ritort

Phys. Rev. Lett. 75, 1190 (1995) - Published 7 August, 1995

Low-Energy Excitations and the Electronic Specific Heat of YbBiPt

R. A. Robinson, M. Kohgi, T. Osakabe, F. Trouw, J. W. Lynn, P. C. Canfield, J. D. Thompson, Z. Fisk, and W. P. Beyermann

Phys. Rev. Lett. 75, 1194 (1995) - Published 7 August, 1995

X-Ray and Neutron Scattering, Magnetization, and Heat Capacity Study of the 3D Random Field Ising Model

R. J. Birgeneau, Q. Feng, Q. J. Harris, J. P. Hill, A. P. Ramirez, and T. R. Thurston

Phys. Rev. Lett. 75, 1198 (1995) - Published 7 August, 1995

Neutron Scattering Studies of $Y_{1 - x} U_{x} {Pd}_{3}$ Compounds

P. Dai, H. A. Mook, C. L. Seaman, M. B. Maple, and J. P. Koster

Phys. Rev. Lett. 75, 1202 (1995) - Published 7 August, 1995

Cross-Disciplinary Physics

Interference of Crossing Trigger Waves in Multilayer Reaction-Diffusion Systems

Andrej E. Bugrim, Anatol M. Zhabotinsky, and Irving R. Epstein

Phys. Rev. Lett. 75, 1206 (1995) - Published 7 August, 1995

Solitary Waves of Molecular Distributions in Liquids Generated by Electrophoresis and Optical Fields

Tarso B. L. Kist

Phys. Rev. Lett. 75, 1210 (1995) - Published 7 August, 1995

Efficient Conversion of the Energy of Intense Relativistic Electron Beams into rf Waves

M. Friedman, R. Fernsler, S. Slinker, R. Hubbard, and M. Lampe

Phys. Rev. Lett. 75, 1214 (1995) - Published 7 August, 1995

Interaction of Multipactor Discharge and rf Circuit

R. Kishek and Y. Y. Lau

Phys. Rev. Lett. 75, 1218 (1995) - Published 7 August, 1995

Earthquake Cycles and Neural Reverberations: Collective Oscillations in Systems with Pulse-Coupled Threshold Elements

Andreas V. M. Herz and John J. Hopfield

Phys. Rev. Lett. 75, 1222 (1995) - Published 7 August, 1995

Novel Type of Phase Transition in a System of Self-Driven Particles

Tamás Vicsek, András Czirók, Eshel Ben-Jacob, Inon Cohen, and Ofer Shochet

Phys. Rev. Lett. 75, 1226 (1995) - Published 7 August, 1995

Evidence for Determinism in Ventricular Fibrillation

Francis X. Witkowski, Katherine M. Kavanagh, Patricia A. Penkoske, Robert Plonsey, Mark L. Spano, William L. Ditto, and Daniel T. Kaplan

Phys. Rev. Lett. 75, 1230 (1995) - Published 7 August, 1995

COMMENTS

Comment on “Direct Observation of Transition from Delayed Ionization to Direct Ionization for Free $C_{60}$ and $C_{70}$ : Thermionic Emission?”

Keith R. Lykke

Phys. Rev. Lett. 75, 1234 (1995) - Published 7 August, 1995

Stuke and Zhang Reply:

M. Stuke and Y. Zhang

Phys. Rev. Lett. 75, 1235 (1995) - Published 7 August, 1995

ERRATA

Demonstration of a Discharge Pumped Table-Top Soft-X-Ray Laser

J. J. Rocca, V. N. Shlyaptsev, F. G. Tomasel, O. D. Cortázar, H. Hartshorn, and J. L. A. Chilla

Phys. Rev. Lett. 75, 1236 (1995) - Published 7 August, 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. 75, 1236 (1995) - Published 7 August, 1995

Restricted Diffusion of the Conduction Electrons in Quasi-One-Dimensional Organic Conductors

R. Ruf, N. Kaplan, and E. Dormann

Phys. Rev. Lett. 75, 1237 (1995) - Published 7 August, 1995