Volume 68, Issue 18

4 May 1992

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LETTERS

General Physics

Shapiro steps in the steady-state dynamics of incommensurate structures

Luis M. Floría and Fernando Falo

Phys. Rev. Lett. 68, 2713 (1992) - Published 4 May, 1992

Optimal paths and the prehistory problem for large fluctuations in noise-driven systems

M. I. Dykman, P. V. E. McClintock, V. N. Smelyanski, N. D. Stein, and N. G. Stocks

Phys. Rev. Lett. 68, 2718 (1992) - Published 4 May, 1992

Instability-driven energy transport in near-integrable, many degrees-of-freedom, Hamiltonian systems

M. Gregory Forest, Christopher G. Goedde, and Amarendra Sinha

Phys. Rev. Lett. 68, 2722 (1992) - Published 4 May, 1992

Distribution of roots of random polynomials

E. Bogomolny, O. Bohigas, and P. Leboeuf

Phys. Rev. Lett. 68, 2726 (1992) - Published 4 May, 1992

Coupled nonlinear oscillators below the synchronization threshold: Relaxation by generalized Landau damping

Steven H. Strogatz, Renato E. Mirollo, and Paul C. Matthews

Phys. Rev. Lett. 68, 2730 (1992) - Published 4 May, 1992

Elementary Particles and Fields

Measurement of the isolated prompt photon cross section in p¯p collisions at √s =1.8 TeV

F. Abe et al.

Phys. Rev. Lett. 68, 2734 (1992) - Published 4 May, 1992

Nuclear Physics

High-Order Collective-Flow Correlations in Heavy-Ion Collisions

J. Jiang, D. Beavis, S. Y. Chu, G. Fai, S. Y. Fung, Y. Z. Jiang, D. Keane, Q. J. Liu, Y. M. Liu, Y. Shao, M. Vient, and S. Wang

Phys. Rev. Lett. 68, 2739 (1992) - Published 4 May, 1992

Cascade for relativistic nucleus collisions

Y. Pang, T. J. Schlagel, and S. H. Kahana

Phys. Rev. Lett. 68, 2743 (1992) - Published 4 May, 1992

Atomic, Molecular, and Optical Physics

Observation of large populations in excited states after short-pulse multiphoton ionization

M. P. de Boer and H. G. Muller

Phys. Rev. Lett. 68, 2747 (1992) - Published 4 May, 1992

Vibrational structure of the $O_{2}^{2 +}$ ground state observed by threshold photoelectron coincidence spectroscopy

R. I. Hall, G. Dawber, A. McConkey, M. A. MacDonald, and G. C. King

Phys. Rev. Lett. 68, 2751 (1992) - Published 4 May, 1992

Optical studies of inertially confined molecular iodine ions

D. T. Strickland, Y. Beaudoin, P. Dietrich, and P. B. Corkum

Phys. Rev. Lett. 68, 2755 (1992) - Published 4 May, 1992

Interference effects between independent gamma rays

E. Ikonen

Phys. Rev. Lett. 68, 2759 (1992) - Published 4 May, 1992

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

Scale-invariant multiplier distributions in turbulence

Ashvin B. Chhabra and K. R. Sreenivasan

Phys. Rev. Lett. 68, 2762 (1992) - Published 4 May, 1992

Probability density of velocity increments in turbulent flows

P. Kailasnath, K. R. Sreenivasan, and G. Stolovitzky

Phys. Rev. Lett. 68, 2766 (1992) - Published 4 May, 1992

Plasma and Beam Physics

Evidence of homoclinic chaos in the plasma of a glow discharge

Thomas Braun, Jorge A. Lisboa, and Jason A. C. Gallas

Phys. Rev. Lett. 68, 2770 (1992) - Published 4 May, 1992

Measurements of the effect of laser beam smoothing on direct-drive inertial-confinement-fusion capsule implosions

D. K. Bradley, J. A. Delettrez, and C. P. Verdon

Phys. Rev. Lett. 68, 2774 (1992) - Published 4 May, 1992

Anomalous ion mixing within a Kelvin-Helmholtz vortex in a collisionless plasma

T. Terasawa, M. Fujimoto, H. Karimabadi, and N. Omidi

Phys. Rev. Lett. 68, 2778 (1992) - Published 4 May, 1992

Condensed Matter: Structure, Etc.

Crystals made of close-packed polymeric spheres: A neutron scattering study on latex films

J. Rieger, E. Hädicke, G. Ley, and P. Lindner

Phys. Rev. Lett. 68, 2782 (1992) - Published 4 May, 1992

Top-site adsorption for potassium on Ni(111)

D. Fisher, S. Chandavarkar, I. R. Collins, R. D. Diehl, P. Kaukasoina, and M. Lindroos

Phys. Rev. Lett. 68, 2786 (1992) - Published 4 May, 1992

Mechanical relaxation of organic monolayer films measured by force microscopy

Stephen A. Joyce, R. C. Thomas, J. E. Houston, T. A. Michalske, and R. M. Crooks

Phys. Rev. Lett. 68, 2790 (1992) - Published 4 May, 1992

Morphological and kinetic evolution of surface patterns in gels during the swelling process: Evidence of dynamic pattern ordering

Hajime Tanaka, Hidemi Tomita, Atsunori Takasu, Takafumi Hayashi, and Toshio Nishi

Phys. Rev. Lett. 68, 2794 (1992) - Published 4 May, 1992

Measuring properties of point defects by electron microscopy: The Ga vacancy in GaAs

J-L. Rouviere, Y. Kim, J. Cunningham, J. A. Rentschler, A. Bourret, and A. Ourmazd

Phys. Rev. Lett. 68, 2798 (1992) - Published 4 May, 1992

Trends of the elastic constants of cubic transition metals

J. M. Wills, Olle Eriksson, Per Söderlind, and A. M. Boring

Phys. Rev. Lett. 68, 2802 (1992) - Published 4 May, 1992

Some aspects of the thermal conductivity of isotopically enriched diamond single crystals

D. G. Onn, A. Witek, Y. Z. Qiu, T. R. Anthony, and W. F. Banholzer

Phys. Rev. Lett. 68, 2806 (1992) - Published 4 May, 1992

Hysteretic solidification of surface ${}^{4}{He}$ measured by the modification of the specularity of ${}^{3}{He}$

S. M. Tholen and J. M. Parpia

Phys. Rev. Lett. 68, 2810 (1992) - Published 4 May, 1992

Thin-film coalescence in hydrogenated amorphous silicon probed by spectroscopic ellipsometry with millisecond-scale resolution

Y.-M. Li, Ilsin An, H. V. Nguyen, C. R. Wronski, and R. W. Collins

Phys. Rev. Lett. 68, 2814 (1992) - Published 4 May, 1992

Condensed Matter: Electronic Properties, Etc.

Evidence for classical star orbit in large ${Al}_{N}$ clusters

J. Lermé, M. Pellarin, J. L. Vialle, B. Baguenard, and M. Broyer

Phys. Rev. Lett. 68, 2818 (1992) - Published 4 May, 1992

Self-trapped polaron exciton in neutral fullerene $C_{60}$

M. Matus, H. Kuzmany, and E. Sohmen

Phys. Rev. Lett. 68, 2822 (1992) - Published 4 May, 1992

Quantum transport theory for electron-phonon systems in strong electric fields

Rita Bertoncini and Antti-Pekka Jauho

Phys. Rev. Lett. 68, 2826 (1992) - Published 4 May, 1992

Superfluid density and the Drude weight of the Hubbard model

D. J. Scalapino, S. R. White, and S. C. Zhang

Phys. Rev. Lett. 68, 2830 (1992) - Published 4 May, 1992

Direct measurement of nonequilibrium electron-energy distributions in subpicosecond laser-heated gold films

W. S. Fann, R. Storz, H. W. K. Tom, and J. Bokor

Phys. Rev. Lett. 68, 2834 (1992) - Published 4 May, 1992

Carrier-carrier scattering in a degenerate electron system: Strong inhibition of scattering near the Fermi edge

Dai-Sik Kim, Jagdeep Shah, J. E. Cunningham, T. C. Damen, Stefan Schmitt-Rink, and Wilfried Schäfer

Phys. Rev. Lett. 68, 2838 (1992) - Published 4 May, 1992

Dynamical resonant electron capture in atom surface collisions: $H^{-}$ formation in H-Al(111) collisions

A. G. Borisov, D. Teillet-Billy, and J. P. Gauyacq

Phys. Rev. Lett. 68, 2842 (1992) - Published 4 May, 1992

Hydrogen-induced phonon anomaly on the W(110) surface

E. Hulpke and J. Lüdecke

Phys. Rev. Lett. 68, 2846 (1992) - Published 4 May, 1992

Origin of 3s splittings in the photoemission spectra of Mn and Fe insulating compounds

S.-J. Oh, Gey-Hong Gweon, and Je-Geun Park

Phys. Rev. Lett. 68, 2850 (1992) - Published 4 May, 1992

COMMENTS

Comment on ‘‘Kinetic phase diagram for crystal growth: A (1+1)-dimensional model’’

Michael Plischke and Martin Siegert

Phys. Rev. Lett. 68, 2854 (1992) - Published 4 May, 1992

Phillips and Chrzan reply

Rob Phillips and D. C. Chrzan

Phys. Rev. Lett. 68, 2855 (1992) - Published 4 May, 1992

Localized wave functions and multifractal measures

H. Eduardo Roman

Phys. Rev. Lett. 68, 2856 (1992) - Published 4 May, 1992

Schreiber and Grussbach reply

Michael Schreiber and Heiko Grussbach

Phys. Rev. Lett. 68, 2857 (1992) - Published 4 May, 1992