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Physical Review Letters

Volume 47, Issue 20

16 November 1981

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Editorial

New Acceptance Criteria for Physical Review Letters

Robert K. Adair, George Basbas, George L. Trigg, and Gene L. Wells

Phys. Rev. Lett. 47, 1421 (1981) - Published 16 November, 1981

LETTERS

General Physics

Site Percolation in a Square Lattice with Second- and Dilute First-Neighbor Bonds

P. Murilo Oliveira

Phys. Rev. Lett. 47, 1423 (1981) - Published 16 November, 1981

Analytic Linearization, Hamiltonian Formalism, and Infinite Sequences of Constants of Motion for the Burgers Equation

E. Taflin

Phys. Rev. Lett. 47, 1425 (1981) - Published 16 November, 1981

Elementary Particles and Fields

Fractionally Charged Color-Singlet Fermions in a Grand Unified Theory

H. Goldberg, T. W. Kephart, and M. T. Vaughn

Phys. Rev. Lett. 47, 1429 (1981) - Published 16 November, 1981

Nuclei

Relation between the $Z = 64$ Shell Closure and the Onset of Deformation at $N = 88 - 90$

R. F. Casten, D. D. Warner, D. S. Brenner, and R. L. Gill

Phys. Rev. Lett. 47, 1433 (1981) - Published 16 November, 1981

Elastic Scattering of 500-MeV Polarized Protons from ${}^{40, 48}{Ca}$ , ${}^{90}{Zr}$ , and ${}^{208}{Pb}$ , and Breakdown of the Impulse Approximation at Small Momentum Transfer

G. W. Hoffmann, L. Ray, M. L. Barlett, R. Fergerson, J. McGill, E. C. Milner, Kamal K. Seth, D. Barlow, M. Bosko, S. Iverson, M. Kaletka, A. Saha, and D. Smith

Phys. Rev. Lett. 47, 1436 (1981) - Published 16 November, 1981

Atoms and Molecules

Observation of Muonium in Vacuum

P. R. Bolton, A. Badertscher, P. O. Egan, C. J. Gardner, M. Gladisch, V. W. Hughes, D. C. Lu, M. Ritter, P. A. Souder, J. Vetter, G. zu Putlitz, M. Eckhause, and J. Kane

Phys. Rev. Lett. 47, 1441 (1981) - Published 16 November, 1981

Classical Phenomenology and Applications

Subharmonic Route to Chaos Observed in Acoustics

Werner Lauterborn and Eckehart Cramer

Phys. Rev. Lett. 47, 1445 (1981) - Published 16 November, 1981

Determination of Transition in Couette Flow in Finite Geometries

Kwangjai Park, Gerald L. Crawford, and Russell J. Donnelly

Phys. Rev. Lett. 47, 1448 (1981) - Published 16 November, 1981

Description of Pulse Dynamics in Lorentz Media in Terms of the Energy Velocity and Attenuation of Time-Harmonic Waves

George C. Sherman and Kurt Edmund Oughstun

Phys. Rev. Lett. 47, 1451 (1981) - Published 16 November, 1981

Fluids, Plasmas, and Electric Discharges

Radiation from a Whistler Soliton in Interaction with a Plasma Wave

Rudolf Treumann and Thomas E. X. Bernold

Phys. Rev. Lett. 47, 1455 (1981) - Published 16 November, 1981

Condensed Matter: Structure, Etc.

Pseudomorphic Structure at the Interface of Ge on Si(111) Studied by High-Energy-Ion Scattering

T. Narusawa and W. M. Gibson

Phys. Rev. Lett. 47, 1459 (1981) - Published 16 November, 1981

Critical Behavior of a Microemulsion

John S. Huang and M. W. Kim

Phys. Rev. Lett. 47, 1462 (1981) - Published 16 November, 1981

Surface Roughness Contribution to Kapitza Conductance

N. S. Shiren

Phys. Rev. Lett. 47, 1466 (1981) - Published 16 November, 1981

Frustrated Spin-Gas Model for Doubly Reentrant Liquid Crystals

A. N. Berker and James S. Walker

Phys. Rev. Lett. 47, 1469 (1981) - Published 16 November, 1981

Condensed Matter: Electronic Properties, Etc.

Resistivity and Relaxation in Spin-Glasses

I. A. Campbell

Phys. Rev. Lett. 47, 1473 (1981) - Published 16 November, 1981

Vibrational Bands in the Photoemission of an Adsorbate: $O_{2}$ on Graphite

W. Eberhardt and E. W. Plummer

Phys. Rev. Lett. 47, 1476 (1981) - Published 16 November, 1981

Disorder and the Optical-Absorption Edge of Hydrogenated Amorphous Silicon

G. D. Cody, T. Tiedje, B. Abeles, B. Brooks, and Y. Goldstein

Phys. Rev. Lett. 47, 1480 (1981) - Published 16 November, 1981

Stress-Wave Probing of Electric Field Distributions in Dielectrics

C. Alquie, G. Dreyfus, and J. Lewiner

Phys. Rev. Lett. 47, 1483 (1981) - Published 16 November, 1981

Collective Modes of Photoexcited Electron-Hole Plasmas in GaAs

A. Pinczuk, Jagdeep Shah, and P. A. Wolff

Phys. Rev. Lett. 47, 1487 (1981) - Published 16 November, 1981

COMMENTS

Vibrational Excitations of Solitons in Polyacetylene

Baruch Horovitz

Phys. Rev. Lett. 47, 1491 (1981) - Published 16 November, 1981

Mele and Rice Respond

E. J. Mele and M. J. Rice

Phys. Rev. Lett. 47, 1492 (1981) - Published 16 November, 1981