Non-mean-field interpretation of the irreversibility line in spin-glasses

A. P. Malozemoff, S. E. Barnes, B. Barbara

Research output: Contribution to journalArticlepeer-review

74 Scopus citations


Susceptibility data on an amorphous GdAl spin-glass show an irreversibility onset line t=-A H2φ - and a susceptibility crossover line t=+A H2φ++ (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.

Original languageEnglish (US)
Pages (from-to)1704-1707
Number of pages4
JournalPhysical Review Letters
Issue number18
StatePublished - 1983

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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