Research Papers in Physics and Astronomy
Date of this Version
The generality and universality of the Ising spin-glass-like phase transitions observed in several rare-earth, random-anisotropy magnets are discussed. Some uncertainties and practical problems in determining critical exponents are considered, and a comparison is made to insulating spin glasses and crystalline spin glasses where an apparent anisotropy-induced crossover from Heisenberg to Ising-like behavior is seen. The observation of a reentrant transition in a weak anisotropy system and its correlation with the theory of Chudnovsky, Saslow, and Serota [Phys. Rev. B 33, 251 (1986)] for the correlated spin glass is discussed. Journal of Applied Physics is copyrighted by The American Institute of Physics.
Published by American Institute of Physics. J. Applied Physics 63, 3743 (1988). ©1988 American Institute of Physics. Permission to use. http://jap.aip.org/jap/.