Volume 71, Issue 6

M. Alston-Garnjost, B. L. Dougherty, R. W. Kenney, R. D. Tripp, J. M. Krivicich, H. W. Nicholson, C. S. Sutton, B. D. Dieterle, S. D. Foltz, C. P. Leavitt, R. A. Reeder, J. D. Baker, and A. J. Caffrey

Phys. Rev. Lett. 71, 831 (1993) - Published 9 August, 1993

Azimuthal asymmetry of neutral pion emission in Au+Au reactions at 1 GeV/nucleon

L. B. Venema et al.

Phys. Rev. Lett. 71, 835 (1993) - Published 9 August, 1993

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

Multiple-time-scale approach to ergodic adiabatic systems: Another look

C. Jarzynski

Phys. Rev. Lett. 71, 839 (1993) - Published 9 August, 1993

Geometric method to create coherent structures in chaotic flows

Troy Shinbrot and J. M. Ottino

Phys. Rev. Lett. 71, 843 (1993) - Published 9 August, 1993

Tip dynamics in Saffman-Taylor fracture

Douglas A. Kurtze and Daniel C. Hong

Phys. Rev. Lett. 71, 847 (1993) - Published 9 August, 1993

Plasma and Beam Physics

A method for free electron acceleration of particle beams

D. J. Larson

Phys. Rev. Lett. 71, 851 (1993) - Published 9 August, 1993

Observation of beta-induced Alfvén eigenmodes in the DIII-D tokamak

W. W. Heidbrink, E. J. Strait, M. S. Chu, and A. D. Turnbull

Phys. Rev. Lett. 71, 855 (1993) - Published 9 August, 1993

Evidence of the complete magnetic reconnection during a sawtooth collapse in a tokamak

D. Wróblewski and R. T. Snider

Phys. Rev. Lett. 71, 859 (1993) - Published 9 August, 1993

Subharmonics and rf-plasma sheaths

Paul A. Miller, Louis A. Romero, and Paul D. Pochan

Phys. Rev. Lett. 71, 863 (1993) - Published 9 August, 1993

Condensed Matter: Structure, Etc.

Observation of temperature dependent thicknesses in ultrathin polystyrene films on silicon

William J. Orts, John H. van Zanten, Wen-li Wu, and Sushil K. Satija

Phys. Rev. Lett. 71, 867 (1993) - Published 9 August, 1993

Localized vibrations from clusters in quasicrystals

C. Janot, A. Magerl, B. Frick, and M. de Boissieu

Phys. Rev. Lett. 71, 871 (1993) - Published 9 August, 1993

$H_{2}^{*}$ defect in crystalline silicon

J. D. Holbech, B. Bech Nielsen, R. Jones, P. Sitch, and S. Öberg

Phys. Rev. Lett. 71, 875 (1993) - Published 9 August, 1993

Observation of field-induced spin-current relaxation in a Fermi liquid

L-J. Wei, N. Kalechofsky, and D. Candela

Phys. Rev. Lett. 71, 879 (1993) - Published 9 August, 1993

Boron diffusion in strained ${Si}_{1 - x}$ ${Ge}_{x}$ epitaxial layers

N. Moriya, L. C. Feldman, H. S. Luftman, C. A. King, J. Bevk, and B. Freer

Phys. Rev. Lett. 71, 883 (1993) - Published 9 August, 1993

Step melting and the equilibrium crystal shape of Pb

John Stewart

Phys. Rev. Lett. 71, 887 (1993) - Published 9 August, 1993

Thermal field desorption spectroscopy of chemisorbed hydrogen for a single step site

N. Ernst, J. H. Block, H. J. Kreuzer, and X. Ye

Phys. Rev. Lett. 71, 891 (1993) - Published 9 August, 1993

Layer-by-layer growth of Ag on Ag(111) induced by enhanced nucleation: A model study for surfactant-mediated growth

Georg Rosenfeld, Roland Servaty, Christian Teichert, Bene Poelsema, and George Comsa

Phys. Rev. Lett. 71, 895 (1993) - Published 9 August, 1993

Condensed Matter: Electronic Properties, Etc.

Unbiased access to exchange splitting of magnetic bands using the maximum entropy method

W. von der Linden, M. Donath, and V. Dose

Phys. Rev. Lett. 71, 899 (1993) - Published 9 August, 1993

Discovery of narrow-band photoionization resonance transition at 0.65 eV in AlGaAs/GaAs heterostructures

M. Spector, L. N. Pfeiffer, J. C. Licini, K. W. West, and G. A. Baraff

Phys. Rev. Lett. 71, 903 (1993) - Published 9 August, 1993

Avoided crossings of Au(111)/Ag/Au/Ag double-quantum-well states

W. E. McMahon, T. Miller, and T.-C. Chiang

Phys. Rev. Lett. 71, 907 (1993) - Published 9 August, 1993

Electron energy loss spectroscopy of single silicon nanocrystals: The conduction band

P. E. Batson and J. R. Heath

Phys. Rev. Lett. 71, 911 (1993) - Published 9 August, 1993

Field induced 3D to 2D crossover of shielding current path in ${Bi}_{2}$ ${Sr}_{2}$ ${CaCu}_{2}$ $O_{x}$

N. Nakamura, G. D. Gu, and N. Koshizuka

Phys. Rev. Lett. 71, 915 (1993) - Published 9 August, 1993

Low energy excitations in superconducting ${La}_{1.86}$ ${Sr}_{0.14}$ ${CuO}_{4}$

T. E. Mason, G. Aeppli, S. M. Hayden, A. P. Ramirez, and H. A. Mook

Phys. Rev. Lett. 71, 919 (1993) - Published 9 August, 1993

Experimental observation of magnetism in rhodium clusters

A. J. Cox, J. G. Louderback, and L. A. Bloomfield

Phys. Rev. Lett. 71, 923 (1993) - Published 9 August, 1993

Oscillatory exchange coupling of ferromagnetically aligned Fe(110) layers through Ag(111) interlayers

D. J. Keavney, D. F. Storm, J. W. Freeland, M. D. Wieczorek, J. C. Walker, M. G. Pini, P. Politi, and A. Rettori

Phys. Rev. Lett. 71, 927 (1993) - Published 9 August, 1993

Cross-Disciplinary Physics

Resonances in the photolysis of HCl in Ar-CHl: Imaging of a resonance wave function in the photofragment angular distribution

A. García-Vela, R. B. Gerber, D. G. Imre, and J. J. Valentini

Phys. Rev. Lett. 71, 931 (1993) - Published 9 August, 1993

Global coupling in the presence of defects: Synchronization in an oscillatory surface reaction

G. Veser, F. Mertens, A. S. Mikhailov, and R. Imbihl

Phys. Rev. Lett. 71, 935 (1993) - Published 9 August, 1993

Nonlinear rheology of wormlike micelles

N. A. Spenley, M. E. Cates, and T. C. B. McLeish

Phys. Rev. Lett. 71, 939 (1993) - Published 9 August, 1993

Quantum-mechanical computers and uncomputability

Seth Lloyd

Phys. Rev. Lett. 71, 943 (1993) - Published 9 August, 1993

COMMENTS

Comment on ‘‘Novel diffusion phenomenon of dopants in silicon at low temperatures’’

P. A. Ronsheim and M. Tejwani

Phys. Rev. Lett. 71, 947 (1993) - Published 9 August, 1993

Wittmer et al. reply

M. Wittmer, P. Fahey, G. J. Scilla, and S. S. Iyer

Phys. Rev. Lett. 71, 948 (1993) - Published 9 August, 1993

ERRATA

Surface Diffusion Currents and the Universality Classes of Growth

Joachim Krug, Michael Plischke, and Martin Siegert

Phys. Rev. Lett. 71, 949 (1993) - Published 9 August, 1993