• LETTERS
  • General Physics
  • Gravitation and Astrophysics
  • Elementary Particles and Fields
  • Atomic, Molecular, and Optical Physics
  • Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.
  • Plasma and Beam Physics
  • Condensed Matter: Structure, Etc.
  • Condensed Matter: Electronic Properties, Etc.
• COMMENTS
• ERRATA

•	Quantum Tunneling of Magnetization in Small Ferromagnetic Particles E. M. Chudnovsky and L. Gunther pp. 661-664 [View   PDF (586 kB) ]

•	Truncated-fractal basin boundaries in forced pendulum systems Matthew Varghese and James S. Thorp pp. 665-668 [View   PDF (558 kB)  See Also: Erratum]

•	New definition and simulation of critical clusters of Ising spins Z. Alexandrowicz pp. 669-672 [View   PDF (665 kB) ]

•	Invariant multifractal measures in chaotic Hamiltonian systems, and related structures Martin C. Gutzwiller and Benoit B. Mandelbrot pp. 673-676 [View   PDF (580 kB) ]

•	Quark matter or new particles? F. Curtis Michel pp. 677-679 [View   PDF (509 kB) ]

•	Nonassociative electric fields in chiral gauge theory: An explicit construction Gordon W. Semenoff pp. 680-683 [View   PDF (605 kB)  See Also: Erratum]

•	Interacting superstrings at finite temperature E. Ahmed pp. 684-685 [View   PDF (219 kB) ]

•	Polarization-asymmetry relations in neutron optics P. K. Kabir pp. 686-687 [View   PDF (324 kB) ]

•	Second-harmonic generation from collision complexes Ahmet Eli and David Depatie pp. 688-691 [View   PDF (515 kB) ]

•	Laser-assisted dielectronic recombination K. J. LaGattuta pp. 692-695 [View   PDF (651 kB)  See Also: Erratum]

•	Speed ratios greater than 1000 and temperatures less than 1 mK in a pulsed He beam Jue Wang, Vasgen A. Shamamian, Bruce R. Thomas, James M. Wilkinson, Joelle Riley, Clayton F. Giese, and W. Ronald Gentry pp. 696-699 [View   PDF (692 kB) ]

•	Taylor-Couette flow with periodically corotated and counterrotated cylinders Thomas J. Walsh and Russell J. Donnelly pp. 700-703 [View   PDF (664 kB) ]

•	Instability of the sheath-plasma resonance R. L. Stenzel pp. 704-707 [View   PDF (591 kB) ]

•	Anisotropic surface tension, step free energy, and interfacial roughening in the three-dimensional Ising model K. K. Mon, S. Wansleben, D. P. Landau, and K. Binder pp. 708-711 [View   PDF (539 kB)  See Also: Erratum]

•	Winding angle of a self-avoiding random walk Joseph Rudnick and Yuming Hu pp. 712-715 [View   PDF (517 kB) ]

•	Tight-binding calculation of Ti-Rh–type phase diagram M. Sluiter, P. Turchi, Fu Zezhong, and D. de Fontaine pp. 716-719 [View   PDF (586 kB) ]

•	Dynamics of dilute magnets above Tc A. J. Bray pp. 720-723 [View   PDF (529 kB) ]

•	Linear temperature term of heat capacity in insulating and superconducting La-Ba-Cu-O systems K. Kumagai, Y. Nakamichi, I. Watanabe, Y. Nakamura, H. Nakajima, N. Wada, and P. Lederer pp. 724-727 [View   PDF (618 kB) ]

•	Spin splitting in semiconductor heterostructures for B→0 G. Lommer, F. Malcher, and U. Rossler pp. 728-731 [View   PDF (558 kB) ]

•	Spin fluctuations and superconductivity in Ba2YCu3O6+δ K. B. Lyons, P. A. Fleury, L. F. Schneemeyer, and J. V. Waszczak pp. 732-735 [View   PDF (678 kB) ]

•	Generalization of Nyquist-Einstein relationship to conditions far from equilibrium in nondegenerate semiconductors Lino Reggiani, Paolo Lugli, and Vladimir Mitin pp. 736-739 [View   PDF (620 kB) ]

•	Two-particle excitations in antiferromagnetic insulators Boris I. Shraiman and Eric D. Siggia pp. 740-743 [View   PDF (596 kB) ]

•	Field-induced orientation of nonlevitated microcrystals of superconducting YBa2Cu3O7-x S. A. Solin, N. Garcia, S. Vieira, and M. Hortal pp. 744-747 [View   PDF (627 kB) ]

•	Neutral-pion photoproduction on protons near threshold R. Davidson and Nimai C. Mukhopadhyay pp. 748 [View   PDF (170 kB) ]

•	Mazzucato et al. Reply E. Mazzucato, P. Argan, G. Audit, A. Bloch, N. de Botton, N. d'Hose, J. -L. Faure, M. L. Ghedira, C. Guerra, J. Martin, C. Schuhl, G. Tamas, and E. Vincent pp. 749 [View   PDF (122 kB) ]

•	Comment on ‘‘Resistivity of La1.825Sr0.175CuO4 and YBa2Cu3O7 to 1100 K: Absence of saturation and its implications’’ Changfeng Chen pp. 750 [View   PDF (181 kB) ]

•	Gurvitch and Fiory reply M. Gurvitch and A. T. Fiory pp. 751 [View   PDF (139 kB) ]

•	Is the isotope effect absent in YBa2Cu3O7-δ? M. Grimsditch, T. O. Brun, R. Bhadra, B. Dabrowski, D. G. Hinks, J. D. Jorgensen, M. A. Beno, J. Z. Liu, H. B. Schuttler, C. U. Segre, L. Soderholm, B. W. Veal, and Ivan K. Schuller pp. 752 [View   PDF (185 kB) ]

•	Zettl and Kinney reply A. Zettl and John Kinney pp. 753 [View   PDF (168 kB) ]

•	Batlogg, Cava, and Stavola reply B. Batlogg, R. J. Cava, and M. Stavola pp. 754 [View   PDF (179 kB) ]

•	Erratum: Measurement of longitudinal coherence lengths in particle beams [Phys. Rev. Lett. 59, 951 (1987)] Herbert J. Bernstein and Francis E. Low pp. 755 [View   PDF (67 kB) ]

•	Defect Core Structure in Nematic Liquid Crystals N. Schopohl and T. J. Sluckin pp. 755 [View   PDF (67 kB) ]