Experimental evidence for dynamic scaling in spin glasses

C. Pappas; F. Mezei; G. Ehlers; I. A. Campbell

doi:10.1007/s003390201370

Experimental evidence for dynamic scaling in spin glasses

C. Pappas, F. Mezei, G. Ehlers, I. A. Campbell

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Abstract

Dynamics is the key to the understanding of glassy transitions. A detailed analysis of s(Q, t) in the spin glass system Au_0.86Fe_0.14 shows that at T_g the autocorrelation function decays as t^-x, with x ∼ 0.12. Above T_g, s(Q, t) is then described by the form proposed by Ogielski: t^-x exp(-(t/τ₀)^β). These results agree with predictions of large scale numerical simulations and are a direct confirmation of dynamic scaling in spin glasses.

Original language	English
Pages (from-to)	S907-S909
Journal	Applied Physics A: Materials Science and Processing
Volume	74
Issue number	SUPPL.I
DOIs	https://doi.org/10.1007/s003390201370
State	Published - Dec 2002
Externally published	Yes

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abstract = "Dynamics is the key to the understanding of glassy transitions. A detailed analysis of s(Q, t) in the spin glass system Au0.86Fe0.14 shows that at Tg the autocorrelation function decays as t-x, with x ∼ 0.12. Above Tg, s(Q, t) is then described by the form proposed by Ogielski: t-x exp(-(t/τ0)β). These results agree with predictions of large scale numerical simulations and are a direct confirmation of dynamic scaling in spin glasses.",

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AB - Dynamics is the key to the understanding of glassy transitions. A detailed analysis of s(Q, t) in the spin glass system Au0.86Fe0.14 shows that at Tg the autocorrelation function decays as t-x, with x ∼ 0.12. Above Tg, s(Q, t) is then described by the form proposed by Ogielski: t-x exp(-(t/τ0)β). These results agree with predictions of large scale numerical simulations and are a direct confirmation of dynamic scaling in spin glasses.

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Experimental evidence for dynamic scaling in spin glasses

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