Volume 68, Issue 25

F. Amiranoff, M. Laberge, J. R. Marquès, F. Moulin, E. Fabre, B. Cros, G. Matthieussent, P. Benkheiri, F. Jacquet, J. Meyer, Ph. Miné, C. Stenz, and P. Mora

Phys. Rev. Lett. 68, 3710 (1992) - Published 22 June, 1992

Condensed Matter: Structure, Etc.

Evidence for vacancies in amorphous silicon

G. N. van den Hoven, Z. N. Liang, L. Niesen, and J. S. Custer

Phys. Rev. Lett. 68, 3714 (1992) - Published 22 June, 1992

Inhomogeneous quantum groups as symmetries of phonons

F. Bonechi, E. Celeghini, R. Giachetti, E. Sorace, and M. Tarlini

Phys. Rev. Lett. 68, 3718 (1992) - Published 22 June, 1992

Anomalous elasticity and symmetry breaking fields in tethered membranes

T. A. Tokuyasu and John Toner

Phys. Rev. Lett. 68, 3721 (1992) - Published 22 June, 1992

Observation of dispersion in the J= $2^{+}$ collective modes of ${}^{3}B$ by nonlinear acoustic spectroscopy

A. J. Manninen, H. Alles, A. V. Babkin, J. P. Pekola, and R. H. McKenzie

Phys. Rev. Lett. 68, 3725 (1992) - Published 22 June, 1992

Three-dimensional Toom model: Connection to the anisotropic Kardar-Parisi-Zhang equation

Albert-László Barabási, Mariela Araujo, and H. Eugene Stanley

Phys. Rev. Lett. 68, 3729 (1992) - Published 22 June, 1992

Strain relaxation by domain formation in epitaxial ferroelectric thin films

B. S. Kwak, A. Erbil, B. J. Wilkens, J. D. Budai, M. F. Chisholm, and L. A. Boatner

Phys. Rev. Lett. 68, 3733 (1992) - Published 22 June, 1992

Desorption induced by multiple electronic transitions

J. A. Misewich, T. F. Heinz, and D. M. Newns

Phys. Rev. Lett. 68, 3737 (1992) - Published 22 June, 1992

Columnar growth and kinetic roughening in electrochemical deposition

Galathara L. M. K. S. Kahanda, Xiao-qun Zou, Robert Farrell, and Po-zen Wong

Phys. Rev. Lett. 68, 3741 (1992) - Published 22 June, 1992

Condensed Matter: Electronic Properties, Etc.

Giant magnetoresistance in heterogeneous Cu-Co alloys

A. E. Berkowitz, J. R. Mitchell, M. J. Carey, A. P. Young, S. Zhang, F. E. Spada, F. T. Parker, A. Hutten, and G. Thomas

Phys. Rev. Lett. 68, 3745 (1992) - Published 22 June, 1992

Giant magnetoresistance in nonmultilayer magnetic systems

John Q. Xiao, J. Samuel Jiang, and C. L. Chien

Phys. Rev. Lett. 68, 3749 (1992) - Published 22 June, 1992

Simple cellular method for the exact solution of the one-electron Schrödinger equation

X.-G. Zhang and W. H. Butler

Phys. Rev. Lett. 68, 3753 (1992) - Published 22 June, 1992

Universal conductance fluctuations in the presence of Landau quantization

Shanhui Xiong and A. Douglas Stone

Phys. Rev. Lett. 68, 3757 (1992) - Published 22 June, 1992

Interface quantum well states observed by three-wave mixing in ZnSe/GaAs heterostructures

M. S. Yeganeh, J. Qi, A. G. Yodh, and M. C. Tamargo

Phys. Rev. Lett. 68, 3761 (1992) - Published 22 June, 1992

Peltier coefficient and thermal conductance of a quantum point contact

L. W. Molenkamp, Th. Gravier, H. van Houten, O. J. A. Buijk, M. A. A. Mabesoone, and C. T. Foxon

Phys. Rev. Lett. 68, 3765 (1992) - Published 22 June, 1992

Double peaks in the dissipation of vibrating superconductors

Ernst Helmut Brandt

Phys. Rev. Lett. 68, 3769 (1992) - Published 22 June, 1992

Fluctuations of vortices in layered high- $T_{c}$ superconductors

L. N. Bulaevskii, M. Ledvij, and V. G. Kogan

Phys. Rev. Lett. 68, 3773 (1992) - Published 22 June, 1992

Disappearance of superconductivity in overdoped ${La}_{2 - x}$ ${Sr}_{x}$ ${CuO}_{4}$ at a structural phase boundary

H. Takagi, R. J. Cava, M. Marezio, B. Batlogg, J. J. Krajewski, W. F. Peck, Jr., P. Bordet, and D. E. Cox

Phys. Rev. Lett. 68, 3777 (1992) - Published 22 June, 1992

Finite-temperature phase transition in metallic spin-glass alloys

F. Matsubara and M. Iguchi

Phys. Rev. Lett. 68, 3781 (1992) - Published 22 June, 1992

Chiral ordering in Heisenberg spin glasses in two and three dimensions

Hikaru Kawamura

Phys. Rev. Lett. 68, 3785 (1992) - Published 22 June, 1992

Ferromagnetism of potassium clusters incorporated into zeolite LTA

Yasuo Nozue, Tetsuya Kodaira, and Takenari Goto

Phys. Rev. Lett. 68, 3789 (1992) - Published 22 June, 1992

Annihilation gamma-ray spectra from positron-molecule interactions

S. Tang, M. D. Tinkle, R. G. Greaves, and C. M. Surko

Phys. Rev. Lett. 68, 3793 (1992) - Published 22 June, 1992

Charge-state distribution of MeV He ions scattered from the topmost atomic layer of the SnTe(001) surface

Kenji Kimura, Hisashi Ohtsuka, and Michi-hiko Mannami

Phys. Rev. Lett. 68, 3797 (1992) - Published 22 June, 1992

Cross-Disciplinary Physics

Superlattice formation in binary mixtures of hard-sphere colloids

P. Bartlett, R. H. Ottewill, and P. N. Pusey

Phys. Rev. Lett. 68, 3801 (1992) - Published 22 June, 1992

Evolution of long-range fractal correlations and 1/f noise in DNA base sequences

Richard F. Voss

Phys. Rev. Lett. 68, 3805 (1992) - Published 22 June, 1992

COMMENTS

Comment on Spin-rotation-gravity coupling

J. Anandan

Phys. Rev. Lett. 68, 3809 (1992) - Published 22 June, 1992

Cai and Papini reply

Y. Q. Cai and G. Papini

Phys. Rev. Lett. 68, 3811 (1992) - Published 22 June, 1992

Mashhoon replies

Bahram Mashhoon

Phys. Rev. Lett. 68, 3812 (1992) - Published 22 June, 1992

Comment on ‘‘Experimental test of the de Broglie guided-wave theory for photons’’

J. R. Croca, A. Garuccio, V. L. Lepore, and R. N. Moreira

Phys. Rev. Lett. 68, 3813 (1992) - Published 22 June, 1992

Zou et al. reply

X. Y. Zou, T. P. Grayson, L. J. Wang, and L. Mandel

Phys. Rev. Lett. 68, 3814 (1992) - Published 22 June, 1992

Superposition of coherent states and squeezing

M. Orszag, R. Ramírez, J. C. Retamal, and C. Saavedra

Phys. Rev. Lett. 68, 3815 (1992) - Published 22 June, 1992

Janszky, Adam, and Vinogradov reply

J. Janszky, P. Adam, and An. V. Vinogradov

Phys. Rev. Lett. 68, 3816 (1992) - Published 22 June, 1992

Comment on ‘‘Measurement of the magnetization of liquid ${}^{3}{He}$ up to 200 T’’

M. T. Béal-Monod and E. Daniel

Phys. Rev. Lett. 68, 3817 (1992) - Published 22 June, 1992

Wiegers, Wolf, and Puech reply

S. A. J. Wiegers, P. E. Wolf, and L. Puech

Phys. Rev. Lett. 68, 3818 (1992) - Published 22 June, 1992

Comment on ‘‘Crossover to effectively two-dimensional vortices for high- $T_{c}$ superconductors’’

H.-Q. Ding

Phys. Rev. Lett. 68, 3819 (1992) - Published 22 June, 1992

Minnhagen and Olsson reply

P. Minnhagen and P. Olsson

Phys. Rev. Lett. 68, 3820 (1992) - Published 22 June, 1992