Volume 33, Issue 18

28 October 1974

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Editorial

"The Old Order Changeth..."

J. A. Krumhansl and George L. Trigg

Phys. Rev. Lett. 33, 1061 (1974) - Published 28 October, 1974

LETTERS

Atoms, Molecules, and Related Topics

Observation of Fine-Structure Quantum Beats Following Stepwise Excitation in Sodium $D$ States

S. Haroche, M. Gross, and M. P. Silverman

Phys. Rev. Lett. 33, 1063 (1974) - Published 28 October, 1974

Atoms, Nuclei, and Particles in Matter

Quasi- $Γ_{8}$ Ground State of a Jahn-Teller Ion

Y. H. Shing and D. Walsh

Phys. Rev. Lett. 33, 1067 (1974) - Published 28 October, 1974

Superradiant Line in the Soft—X-Ray Range

P. Jaeglé, G. Jamelot, A. Carillon, A. Sureau, and P. Dhez

Phys. Rev. Lett. 33, 1070 (1974) - Published 28 October, 1974

Plasmas, Fluids, Thermodynamics, and Related Topics

Observation of Persistent Currents in a Saturated Superfluid Film

Robert K. Galkiewicz and Robert B. Hallock

Phys. Rev. Lett. 33, 1073 (1974) - Published 28 October, 1974

Identification of Ion-Cyclotron Drift Instability with Discrete and Continuous Spectra

H. W. Hendel and M. Yamada

Phys. Rev. Lett. 33, 1076 (1974) - Published 28 October, 1974

Solids

New Structural Findings from a Neutron-Diffraction Study of One-Dimensional $K_{2}$ Pt ${(CN)}_{4}$ ${Br}_{0.3}$ ·3 $H_{2}$ O

Jack M. Williams, Jeffrey L. Petersen, Harold M. Gerdes, and Selmer W. Peterson

Phys. Rev. Lett. 33, 1079 (1974) - Published 28 October, 1974

Photoluminescence at Dislocations in GaAs

W. Heinke and H. J. Queisser

Phys. Rev. Lett. 33, 1082 (1974) - Published 28 October, 1974

Conduction-Polaron Paramagnetic Resonance in Hf $S_{2}$

F. Mehran, T. D. Schultz, M. W. Shafer, and W. J. Fitzpatrick

Phys. Rev. Lett. 33, 1085 (1974) - Published 28 October, 1974

Prediction of Fermi Energies and Photoelectric Thresholds Based on Electronegativity Concepts

Arthur H. Nethercot, Jr.

Phys. Rev. Lett. 33, 1088 (1974) - Published 28 October, 1974

Lattice-Induced Forces between Excitons

E. Tosatti

Phys. Rev. Lett. 33, 1092 (1974) - Published 28 October, 1974

Quantum-Defect Electronegativity Scale for Nontransition Elements

Judith John, St. and Aaron N. Bloch

Phys. Rev. Lett. 33, 1095 (1974) - Published 28 October, 1974

Tricritical-Point Phase Diagram in Fe ${Cl}_{2}$

R. J. Birgeneau, G. Shirane, M. Blume, and W. C. Koehler

Phys. Rev. Lett. 33, 1098 (1974) - Published 28 October, 1974

Nuclei

Observation of Multistep Inelastic Processes in Heavy-Ion-Induced Two-Neutron Transfer Reactions on Rare-Earth Nuclei

K. A. Erb, D. L. Hanson, R. J. Ascuitto, B. Sørensen, J. S. Vaagen, and J. J. Kolata

Phys. Rev. Lett. 33, 1102 (1974) - Published 28 October, 1974

Study of Strongly Damped Collisions in the Reaction of 600-MeV ${}^{84}{Kr}$ on a ${}^{209}{Bi}$ Target

K. L. Wolf, J. P. Unik, J. R. Huizenga, J. Birkelund, H. Freiesleben, and V. E. Viola

Phys. Rev. Lett. 33, 1105 (1974) - Published 28 October, 1974

Observations of a High-Spin Yrast Cascade in ${}^{50}{Cr}$

W. Kutschera, R. B. Huber, C. Signorini, and H. Morinaga

Phys. Rev. Lett. 33, 1108 (1974) - Published 28 October, 1974

Elementary Particles and Fields

Type- $N$ Gravitational Field with Twist

I. Hauser

Phys. Rev. Lett. 33, 1112 (1974) - Published 28 October, 1974

Longitudinal, Massive Photon in an External Magnetic Field

R. A. Cover and G. Kalman

Phys. Rev. Lett. 33, 1113 (1974) - Published 28 October, 1974

Conversion of Electromagnetic to Gravitational Radiation by Scattering from a Charged Black Hole

D. W. Olson and W. G. Unruh

Phys. Rev. Lett. 33, 1116 (1974) - Published 28 October, 1974

Production of Neutral Weak Bosons in High-Energy Electron and Muon Experiments

R. W. Brown, Leon B. Gordon, and K. O. Mikaelian

Phys. Rev. Lett. 33, 1119 (1974) - Published 28 October, 1974

Physical Review Letters