Volume 55, Issue 7

B. H. Cottman, K. Min, P. Stoler, P. K. Teng, E. J. Winhold, M. Yamazaki, P. F. Yergin, A. M. Bernstein, K. I. Blomqvist, J. H. J. Distelbrink, J. A. Nelson, K. Rohrich, C. Schmitt, L. Tiator, V. H. Walther, G. Audit, S. A. Dytman, and L. E. Wright

Phys. Rev. Lett. 55, 684 (1985) - Published 12 August, 1985

Atoms and Molecules

Spin Dependence in Superelastic Electron Scattering from $Na (3 P)$

J. J. McClelland, M. H. Kelley, and R. J. Celotta

Phys. Rev. Lett. 55, 688 (1985) - Published 12 August, 1985

Threshold Behavior near an Electronic Shape Resonance: Analysis of the $He ({}^{3}P)$ Threshold in ${He}^{-}$ Photodetachment and Determination of the $He (2 {}^{3}S)$ Electron Affinity

J. R. Peterson, Y. K. Bae, and D. L. Huestis

Phys. Rev. Lett. 55, 692 (1985) - Published 12 August, 1985

Classical Phenomenology and Applications

Dispersion of Nonlinear Susceptibilities of Ar, $N_{2}$ , and $O_{2}$ Measured and Compared

Victor Mizrahi and D. P. Shelton

Phys. Rev. Lett. 55, 696 (1985) - Published 12 August, 1985

Flicker Noise in Frequency Fluctuations of Lasers

M. R. Sayeh and H. R. Bilger

Phys. Rev. Lett. 55, 700 (1985) - Published 12 August, 1985

Light Polarization of a Quasi-isotropic Laser with Optical Feedback

Guy Stephan and Dominique Hugon

Phys. Rev. Lett. 55, 703 (1985) - Published 12 August, 1985

Fluids, Plasmas, and Electric Discharges

Nonlocal Energy Deposition in High-Intensity Laser-Plasma Interactions

Jon M. Wallace

Phys. Rev. Lett. 55, 707 (1985) - Published 12 August, 1985

Observations of the Spatial Evolution of a Potential Hump into a Strong Double Layer in a High-Voltage Straight Plasma Discharge

Y. Takeda and K. Yamagiwa

Phys. Rev. Lett. 55, 711 (1985) - Published 12 August, 1985

Condensed Matter: Structure, Etc.

Phase Determination of Forbidden X-Ray Reflections in $V_{3}$ Si by Virtual Bragg Scattering

M. C. Schmidt and R. Colella

Phys. Rev. Lett. 55, 715 (1985) - Published 12 August, 1985

New Ground State for the Splay-Fréedericksz Transition in a Polymer Nematic Liquid Crystal

Franklin Lonberg and Robert B. Meyer

Phys. Rev. Lett. 55, 718 (1985) - Published 12 August, 1985

Hypersound Observations of Glass Fluctuations

Eric Courtens, François Huard, and René Vacher

Phys. Rev. Lett. 55, 722 (1985) - Published 12 August, 1985

Migration of Helium Atoms in Copper at 25 K

Th. Wichert, M. Deicher, G. Grübel, E. Recknagel, and W. Reiner

Phys. Rev. Lett. 55, 726 (1985) - Published 12 August, 1985

Role of Long-Wavelength Degrees of Freedom in the Rod-to-Coil Transition in Polymers

Nigel Goldenfeld and J. W. Halley

Phys. Rev. Lett. 55, 730 (1985) - Published 12 August, 1985

Condensed Matter: Electronic Properties, Etc.

Photoemission from a Superlattice and a Single Quantum Well

R. Houdré, C. Hermann, G. Lampel, P. M. Frijlink, and A. C. Gossard

Phys. Rev. Lett. 55, 734 (1985) - Published 12 August, 1985

Dependence of $\frac{1}{f}$ Noise on Defects Induced in Copper Films by Electron Irradiation

Jonathan Pelz and John Clarke

Phys. Rev. Lett. 55, 738 (1985) - Published 12 August, 1985

Coherent Voltage Oscillations Induced by Sliding Charge-Density Waves: Interface or Bulk Phenomenon?

S. E. Brown and L. Mihaly

Phys. Rev. Lett. 55, 742 (1985) - Published 12 August, 1985

Noise and Chaos in a Fractal Basin Boundary Regime of a Josephson Junction

M. Iansiti, Qing Hu, R. M. Westervelt, and M. Tinkham

Phys. Rev. Lett. 55, 746 (1985) - Published 12 August, 1985

Effect of Core Polarization on the Plasma Frequency of Cd, In, and Sn

E. Zaremba and K. Sturm

Phys. Rev. Lett. 55, 750 (1985) - Published 12 August, 1985

Cyclotron-Resonance-Induced Nonequilibrium Phase Transition in $n$ -GaAs

M. Weispfenning, I. Hoeser, W. Böhm, W. Prettl, and E. Schöll

Phys. Rev. Lett. 55, 754 (1985) - Published 12 August, 1985

Energy Level of the 0 to + Charge Transition of Substitutional Manganese in Silicon

R. Czaputa, H. Feichtinger, J. Oswald, H. Sitter, and M. Haider

Phys. Rev. Lett. 55, 758 (1985) - Published 12 August, 1985

Cross-Disciplinary Physics

Quantum Theory of Activated Events in Presence of Long-Time Memory

Peter Hanggi, Hermann Grabert, Gert-Ludwig Ingold, and Ulrich Weiss

Phys. Rev. Lett. 55, 761 (1985) - Published 12 August, 1985

Observation of Order-Disorder Transitions in Strained-Semiconductor Systems

A. Ourmazd and J. C. Bean

Phys. Rev. Lett. 55, 765 (1985) - Published 12 August, 1985