Document Type

Article

Publication Date

1983

Abstract

Susceptibility data on an amorphous GdAl spin-glass show an irreversibility onset line t=-A-H2/φ- and a susceptibility crossover line t=+A+H2/φ+ (t is reduced temperature; H is field). The exponents φ are both close to 3, and the amplitudes A differ only by a factor of 2. In contrast to earlier explanations of the irreversibility in terms of a de Almeida-Thouless mean-field instability, here both crossovers are explained in terms of a non-mean-field scaling theory.

Comments

A. P. Malozemoff, S.E. Barnes and B. Barbara, Physical Review Letters, 51, 1704-1707, 1983. "Copyright © 1983 by the American Physical Society.”

Link to the online abstract: http://link.aps.org/doi/10.1103/PhysRevLett.51.1704

DOI: 10.1103/PhysRevLett.51.1704

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