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Phys. Rev. Lett. 49, 158–161 (1982)

[Issue 2 – 12 July 1982 ]

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Instabilities of an m-Vector Spin-Glass in a Field

Dinah M. Cragg and David Sherrington

Physics Department, Imperial College, London SW7 2BZ, England

Marc Gabay

Physique des Solides, Ecole Normale Supérieure, F-75231 Paris 05, France

It is demonstrated that for a vector spin-glass in a magnetic field, replica-symmetry breaking, the theoretical indicator for magnetic irreversibility, occurs simultaneously with transverse spin-glass ordering as the temperature is reduced. It is argued that the irreversibility onset will be strong in the transverse direction, but only weak longitudinally, with a crossover to strong longitudinal irreversibility at a lower temperature.

©1982 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v49/p158
DOI: 10.1103/PhysRevLett.49.158
PACS: 75.10.Hk, 05.50.+q, 75.50.Kj

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References

1. G. Toulouse, to be published.
2. D. Sherrington and S. Kirkpatrick, Phys. Rev. Lett. 35, 1792 (1975) .
3. J. R. L. de Almeida and D. J. Thouless, J. Phys. A 11, 983 (1978) [ INSPEC].
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8. Omitted endnote.
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10. D. M. Cragg and D. Sherrington, to be published.
11. G. Toulouse, J. Phys. (Paris), Lett. 41, L447 (1980).

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