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

A. P. Malozemoff, Stewart Barnes, B. Barbara

Research output: Contribution to journalArticle

69 Citations (Scopus)

Abstract

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
Volume51
Issue number18
DOIs
StatePublished - 1983

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spin glass
crossovers
magnetic permeability
exponents
scaling
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Non-mean-field interpretation of the irreversibility line in spin-glasses. / Malozemoff, A. P.; Barnes, Stewart; Barbara, B.

In: Physical Review Letters, Vol. 51, No. 18, 1983, p. 1704-1707.

Research output: Contribution to journalArticle

Malozemoff, A. P. ; Barnes, Stewart ; Barbara, B. / Non-mean-field interpretation of the irreversibility line in spin-glasses. In: Physical Review Letters. 1983 ; Vol. 51, No. 18. pp. 1704-1707.
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