Volume 73, Issue 23

C. P. Montoya, W. G. Lynch, D. R. Bowman, G. F. Peaslee, N. Carlin, R. T. de Souza, C. K. Gelbke, W. G. Gong, Y. D. Kim, M. A. Lisa, L. Phair, M. B. Tsang, J. B. Webster, C. Williams, N. Colonna, K. Hanold, M. A. McMahan, G. J. Wozniak, and L. G. Moretto

Phys. Rev. Lett. 73, 3070 (1994) - Published 5 December, 1994

Atomic, Molecular, and Optical Physics

Direct Double Photoionization Involving Inner and Outer Electrons: First Experimental Determination and Many-Body Calculations of an Absolute Cross Section

F. J. Wuilleumier, L. Journel, B. Rouvellou, D. Cubaynes, J. M. Bizau, Z. Liu, J. Liu, M. Richter, P. Sladeczek, K. H. Selbman, and P. Zimmermann

Phys. Rev. Lett. 73, 3074 (1994) - Published 5 December, 1994

Production of Circular Rydberg States with Circularly Polarized Microwave Fields

C. H. Cheng, C. Y. Lee, and T. F. Gallagher

Phys. Rev. Lett. 73, 3078 (1994) - Published 5 December, 1994

Nonlinear Dynamics: Fluid Dynamics, Classical Optics, Etc.

Generation of Spatial Subharmonic Gratings in the Absence of Photorefractive Beam Coupling

T. E. McClelland, D. J. Webb, B. I. Sturman, and K. H. Ringhofer

Phys. Rev. Lett. 73, 3082 (1994) - Published 5 December, 1994

Kolmogorov's ⅘th Law and Intermittency in Turbulence

Samuel I. Vainshtein and K. R. Sreenivasan

Phys. Rev. Lett. 73, 3085 (1994) - Published 5 December, 1994

Plasma and Beam Physics

Low-Energy States of Circulating Stored Ion Beams: Crystalline Beams

Jie Wei, Xiao Ping Li, and Andrew M. Sessler

Phys. Rev. Lett. 73, 3089 (1994) - Published 5 December, 1994

Charging of Dust Grains in a Plasma

A. Barkan, N. D'Angelo, and R. L. Merlino

Phys. Rev. Lett. 73, 3093 (1994) - Published 5 December, 1994

Nonthermal Acceleration from Reconnection Shocks

Eric G. Blackman and George B. Field

Phys. Rev. Lett. 73, 3097 (1994) - Published 5 December, 1994

Experimental Demonstration of Nondisruptive, Central Fueling of a Tokamak by Compact Toroid Injection

R. Raman, F. Martin, B. Quirion, M. St-Onge, J. L. Lachambre, D. Michaud, B. Sawatzky, J. Thomas, A. Hirose, D. Hwang, N. Richard, C. Côté, G. Abel, D. Pinsonneault, J. L. Gauvreau, B. Stansfield, R. Décoste, A. Côté, W. Zuzak, and C. Boucher

Phys. Rev. Lett. 73, 3101 (1994) - Published 5 December, 1994

Condensed Matter: Structure, Etc.

Two-Level Systems and Excited-State Transitions in Fluorite Mixed Crystals and Silica Glass

S. A. FitzGerald, J. A. Campbell, and A. J. Sievers

Phys. Rev. Lett. 73, 3105 (1994) - Published 5 December, 1994

Absence of Finite Upper Critical Dimension in the Spherical Kardar-Parisi-Zhang Model

Yuhai Tu

Phys. Rev. Lett. 73, 3109 (1994) - Published 5 December, 1994

Two-Stage Melting of a Two-Dimensional Collodial Lattice with Dipole Interactions

R. E. Kusner, J. A. Mann, J. Kerins, and A. J. Dahm

Phys. Rev. Lett. 73, 3113 (1994) - Published 5 December, 1994

Holography of $Ge (111) - c (2 \times 8)$ by Surface Core-Level Photoemission

M. T. Sieger, J. M. Roesler, D. S. Lin, T. Miller, and T. C. Chiang

Phys. Rev. Lett. 73, 3117 (1994) - Published 5 December, 1994

High-Dimensional Quantum Dynamics of Adsorption and Desorption of $H_{2}$ at Cu(111)

Axel Gross, Bjørk Hammer, Matthias Scheffler, and Wilhelm Brenig

Phys. Rev. Lett. 73, 3121 (1994) - Published 5 December, 1994

Water Absorption on Perfect Ca $F_{2}$ (111) Studied with He Scattering: Experimental Evidence for Ordering of Nanoclusters

Annemarie Lehmann, Gregor König, and Karl Heinz Rieder

Phys. Rev. Lett. 73, 3125 (1994) - Published 5 December, 1994

Condensed Matter: Electronic Properties, Etc.

Quasiparticle Band Structure of NiO: The Mott-Hubbard Picture Regained

F. Manghi, C. Calandra, and Stefano Ossicini

Phys. Rev. Lett. 73, 3129 (1994) - Published 5 December, 1994

Nature of the Conduction States in the Metallic Molecular Crystal ${L i (N H_{3})}_{4}$

Jorge Kohanoff, Francesco Buda, Michele Parrinello, and Michael L. Klein

Phys. Rev. Lett. 73, 3133 (1994) - Published 5 December, 1994

Does Broken Time Reversal Symmetry Modify the Critical Behavior at the Metal-Insulator Transition in 3-Dimensional Disordered Systems?

E. Hofstetter and M. Schreiber

Phys. Rev. Lett. 73, 3137 (1994) - Published 5 December, 1994

Percolation Metal-Insulator Transitions in the Two-Dimensional Electron System of AlGaAs/GaAs Heterostructures

A. A. Shashkin, V. T. Dolgopolov, G. V. Kravchenko, M. Wendel, R. Schuster, J. P. Kotthaus, R. J. Haug, K. von Klitzing, K. Ploog, H. Nickel, and W. Schlapp

Phys. Rev. Lett. 73, 3141 (1994) - Published 5 December, 1994

Experimental Evidence for the Applicability of an Effective Temperature Concept in $a - S i : H$

C. Palsule, S. Yi, S. Gangopadhyay, U. Schmidt, and B. Schröder

Phys. Rev. Lett. 73, 3145 (1994) - Published 5 December, 1994

Unexpected Periodicity in an Electronic Double Slit Interference Experiment

A. Yacoby, M. Heiblum, V. Umansky, H. Shtrikman, and D. Mahalu

Phys. Rev. Lett. 73, 3149 (1994) - Published 5 December, 1994

Observation of Propagating Plasma Modes in a Thin Superconducting Film

O. Buisson, P. Xavier, and J. Richard

Phys. Rev. Lett. 73, 3153 (1994) - Published 5 December, 1994

Systematic Inclusion of High-Order Multispin Correlations for the Spin-½ $XXZ$ Models

R. F. Bishop, R. G. Hale, and Y. Xian

Phys. Rev. Lett. 73, 3157 (1994) - Published 5 December, 1994

Local Observation of the Impurity-Impurity Interaction in Paramagnetic AuFe Alloys

A. Metz, J. Kapoor, D. Riegel, and W. D. Brewer

Phys. Rev. Lett. 73, 3161 (1994) - Published 5 December, 1994

Cross-Disciplinary Physics

Bifurcation to Traveling Spots in Reaction-Diffusion Systems

K. Krischer and A. Mikhailov

Phys. Rev. Lett. 73, 3165 (1994) - Published 5 December, 1994

Linguistic Features of Noncoding DNA Sequences

R. N. Mantegna, S. V. Buldyrev, A. L. Goldberger, S. Havlin, C. K. Peng, M. Simons, and H. E. Stanley

Phys. Rev. Lett. 73, 3169 (1994) - Published 5 December, 1994

Simulation of Dictyostelium Discoideum Aggregation via Reaction-Diffusion Model

B. N. Vasiev, P. Hogeweg, and A. V. Panfilov

Phys. Rev. Lett. 73, 3173 (1994) - Published 5 December, 1994

COMMENTS

Comment on "Quantitative Theory of Richtmyer-Meshkov Instability"

Karnig O. Mikaelian

Phys. Rev. Lett. 73, 3177 (1994) - Published 5 December, 1994

Grove et al. Reply

John W. Grove, Richard Holmes, David H. Sharp, Yumin Yang, and Qiang Zhang

Phys. Rev. Lett. 73, 3178 (1994) - Published 5 December, 1994

Comment on "Optical Probes of Excited States in Poly ( $p$ -Phenylenvinylene)"

E. M. Conwell, L. J. Rothberg, and H. A. Mizes

Phys. Rev. Lett. 73, 3179 (1994) - Published 5 December, 1994

Leng et al. Reply

J. M. Leng, S. Jeglinski, X. Wei, R. E. Benner, Z. V. Vardeny, F. Guo, and S. Mazumdar

Phys. Rev. Lett. 73, 3180 (1994) - Published 5 December, 1994

ERRATA

Laser Studies of the Decay Chain of Metastable Antiprotonic Helium Atoms

R. S. Hayano, F. E. Maas, H. A. Torri, N. Morita, M. Kumakura, T. Yamazaki, H. Masuda, I. Sugai, F. J. Hartmann, H. Daniel, T. von Egidy, B. Ketzer, W. Müller, W. Schmid, D. Horváth, J. Eades, and E. Widmann

Phys. Rev. Lett. 73, 3181 (1994) - Published 5 December, 1994