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Magnetic properties of a model spin glass and the failure of linear response theory

Publication ,  Journal Article
Bantilan, FT; Palmer, RG
Published in: Journal of Physics F: Metal Physics
December 1, 1981

Zero-temperature computer simulations are reported for the Sherrington-Kirkpatrick random Ising model of a spin glass, including an external field. Results are presented for the internal field distribution P(H), and for the ground state energy and magnetisation as functions of field. P(H) has a linear rise from H=0 for all external fields. The zero-temperature susceptibility chi (0) is close to unity when equilibrium states are examined, in agreement with Parisi's replica symmetry breaking theory and in conflict with linear response theory. The linear response result chi (0)=0 can be obtained by searching for metastable local energy minima close to the zero-field ground state in configuration space.

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Published In

Journal of Physics F: Metal Physics

DOI

ISSN

0305-4608

Publication Date

December 1, 1981

Volume

11

Issue

1

Start / End Page

261 / 266
 

Citation

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Bantilan, F. T., & Palmer, R. G. (1981). Magnetic properties of a model spin glass and the failure of linear response theory. Journal of Physics F: Metal Physics, 11(1), 261–266. https://doi.org/10.1088/0305-4608/11/1/026
Bantilan, F. T., and R. G. Palmer. “Magnetic properties of a model spin glass and the failure of linear response theory.” Journal of Physics F: Metal Physics 11, no. 1 (December 1, 1981): 261–66. https://doi.org/10.1088/0305-4608/11/1/026.
Bantilan FT, Palmer RG. Magnetic properties of a model spin glass and the failure of linear response theory. Journal of Physics F: Metal Physics. 1981 Dec 1;11(1):261–6.
Bantilan, F. T., and R. G. Palmer. “Magnetic properties of a model spin glass and the failure of linear response theory.” Journal of Physics F: Metal Physics, vol. 11, no. 1, Dec. 1981, pp. 261–66. Scopus, doi:10.1088/0305-4608/11/1/026.
Bantilan FT, Palmer RG. Magnetic properties of a model spin glass and the failure of linear response theory. Journal of Physics F: Metal Physics. 1981 Dec 1;11(1):261–266.

Published In

Journal of Physics F: Metal Physics

DOI

ISSN

0305-4608

Publication Date

December 1, 1981

Volume

11

Issue

1

Start / End Page

261 / 266