Volume 61, Issue 15

A. S. Carroll, D. S. Barton, G. Bunce, S. Gushue, Y. I. Makdisi, S. Heppelmann, H. Courant, G. Fang, K. J. Heller, M. L. Marshak, M. A. Shupe, and J. J. Russell

Phys. Rev. Lett. 61, 1698 (1988) - Published 10 October, 1988

Evidence for a Large Breaking of Charge Independence in the $NN$ Interaction

V. G. J. Stoks, P. C. van Campen, T. A. Rijken, and J. J. de Swart

Phys. Rev. Lett. 61, 1702 (1988) - Published 10 October, 1988

Nuclear Physics

Longitudinal Response Functions and Sum Rules for Quasielastic Electron Scattering from ${}^{3}H$ and ${}^{3}{He}$

K. Dow et al.

Phys. Rev. Lett. 61, 1706 (1988) - Published 10 October, 1988

Distribution of $M 1$ Transitions in ${}^{208}{Pb}$

R. M. Laszewski, R. Alarcon, D. S. Dale, and S. D. Hoblit

Phys. Rev. Lett. 61, 1710 (1988) - Published 10 October, 1988

Fundamental Phenomenology and Applications

Synchrotron-Radiation Limit on the Focusing of Electron Beams

Katsunobu Oide

Phys. Rev. Lett. 61, 1713 (1988) - Published 10 October, 1988

Fluids, Plasmas, and Electric Discharges

Cascade and Intermittency Model for Turbulent Compressible Self-Gravitating Matter and Self-Binding Phase-Space Density Fluctuations

H. Biglari and P. H. Diamond

Phys. Rev. Lett. 61, 1716 (1988) - Published 10 October, 1988

Neutral-Beam Current-Driven High-Poloidal-Beta Operation of the DIII-D Tokamak

T. C. Simonen, M. Matsuoka, D. K. Bhadra, K. H. Burrell, R. W. Callis, M. S. Chance, M. S. Chu, J. M. Greene, R. J. Groebner, R. W. Harvey, D. N. Hill, J. Kim, L. Lao, P. I. Petersen, G. D. Porter, H. St. John, B. W. Stallard, R. D. Stambaugh, E. J. Strait, and T. S. Taylor

Phys. Rev. Lett. 61, 1720 (1988) - Published 10 October, 1988

Determination of the Poloidal Magnetic Field Profiles in a Tokamak by Polarization Spectroscopy of an Impurity Ion Line

D. Wróblewski, L. K. Huang, H. W. Moos, and P. E. Phillips

Phys. Rev. Lett. 61, 1724 (1988) - Published 10 October, 1988

Condensed Matter: Structure, Etc.

Quasiparticle Interaction and Magnetic Susceptibility of ${}^{3}{He}$ on ${}^{4}{He}$ Films

E. Krotscheck, M. Saarela, and J. L. Epstein

Phys. Rev. Lett. 61, 1728 (1988) - Published 10 October, 1988

Splitting of the Squashing Collective Mode of Superfluid ${}^{3}{He} - B$ by a Magnetic Field

R. Movshovich, E. Varoquaux, N. Kim, and D. M. Lee

Phys. Rev. Lett. 61, 1732 (1988) - Published 10 October, 1988

Aggregation of Magnetic Microspheres: Experiments and Simulations

G. Helgesen, A. T. Skjeltorp, P. M. Mors, R. Botet, and R. Jullien

Phys. Rev. Lett. 61, 1736 (1988) - Published 10 October, 1988

Growth Model of Dodecagonal Quasicrystal Based on Correlated Tiling of Squares and Equilateral Triangles

K. H. Kuo, Y. C. Feng, and H. Chen

Phys. Rev. Lett. 61, 1740 (1988) - Published 10 October, 1988

Suppression of Interface Roughness in Driven Nonequilibrium Systems

K. -t. Leung, K. K. Mon, J. L. Vallés, and R. K. P. Zia

Phys. Rev. Lett. 61, 1744 (1988) - Published 10 October, 1988

Lattice Compression from Conduction Electrons in Heavily Doped Si:As

G. S. Cargill, III, J. Angilello, III, and K. L. Kavanagh

Phys. Rev. Lett. 61, 1748 (1988) - Published 10 October, 1988

Temporary Negative-Ion Formation in Chemisorbed Species: The Energy and Angular Dependence of Vibrational Losses for Electron Scattering Studies of HCOO/Ni(110)

T. S. Jones and N. V. Richardson

Phys. Rev. Lett. 61, 1752 (1988) - Published 10 October, 1988

Structure of the Si(111)-Ca $F_{2}$ Interface

R. M. Tromp and M. C. Reuter

Phys. Rev. Lett. 61, 1756 (1988) - Published 10 October, 1988

Condensed Matter: Electronic Properties, Etc.

Observation of Skipping Motion in Small-Angle Ion-Surface Scattering

K. J. Snowdon, D. J. O'Connor, and R. J. MacDonald

Phys. Rev. Lett. 61, 1760 (1988) - Published 10 October, 1988

Theory of Semiconductor Heterojunction Valence-Band Offsets: From Supercell Band-Structure Calculations toward a Simple Model

Walter R. L. Lambrecht and Benjamin Segall

Phys. Rev. Lett. 61, 1764 (1988) - Published 10 October, 1988

On-Site Coulomb Repulsion and Resonant Tunneling

Tai Kai Ng and Patrick A. Lee

Phys. Rev. Lett. 61, 1768 (1988) - Published 10 October, 1988

Pairing of Electrons by a Point Defect in $c - {As}_{2} {Se}_{3}$

Eugen Tarnow, M. C. Payne, and J. D. Joannopoulos

Phys. Rev. Lett. 61, 1772 (1988) - Published 10 October, 1988

Charge-Density-Wave Carrier Concentration in Nb ${Se}_{3}$ as a Function of Magnetic Field and Temperature

T. M. Tritt, D. J. Gillespie, A. C. Ehrlich, and G. X. Tessema

Phys. Rev. Lett. 61, 1776 (1988) - Published 10 October, 1988

Activated Dynamics in the Two-Dimensional Ising Spin-Glass ${Rb}_{2} {Cu}_{1 - x} {Co}_{x} F_{4}$

C. Dekker, A. F. M. Arts, H. W. de Wijn, A. J. van Duyneveldt, and J. A. Mydosh

Phys. Rev. Lett. 61, 1780 (1988) - Published 10 October, 1988

Superconducting Instabilities in the Large- $U$ Limit of a Generalized Hubbard Model

Gabriel Kotliar and Jialin Liu

Phys. Rev. Lett. 61, 1784 (1988) - Published 10 October, 1988

Cross-Disciplinary Physics

DNA Plasmon

L. L. Van Zandt and V. K. Saxena

Phys. Rev. Lett. 61, 1788 (1988) - Published 10 October, 1988

COMMENTS

Comment on "Guided and Surface Electron Drift Waves in Plasmas"

L. Stenflo, M. Y. Yu, and P. K. Shukla

Phys. Rev. Lett. 61, 1791 (1988) - Published 10 October, 1988

Dragila and Vukovic Reply

R. Dragila and S. Vukovic

Phys. Rev. Lett. 61, 1792 (1988) - Published 10 October, 1988

ERRATA

Ions in Superfluid ${}^{4}{He}$

Tao Pang

Phys. Rev. Lett. 61, 1793 (1988) - Published 10 October, 1988

Diffraction-Free Beams Remain Diffraction Free under All Paraxial Optical Transformations

Kurt Bernardo Wolf

Phys. Rev. Lett. 61, 1793 (1988) - Published 10 October, 1988