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 language | English (US) |
|---|---|
| Pages (from-to) | 1704-1707 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 51 |
| Issue number | 18 |
| DOIs | |
| State | Published - 1983 |
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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 journal › Article
}
TY - JOUR
T1 - Non-mean-field interpretation of the irreversibility line in spin-glasses
AU - Malozemoff, A. P.
AU - Barnes, Stewart
AU - Barbara, B.
PY - 1983
Y1 - 1983
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=4243313581&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=4243313581&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.51.1704
DO - 10.1103/PhysRevLett.51.1704
M3 - Article
AN - SCOPUS:4243313581
VL - 51
SP - 1704
EP - 1707
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 18
ER -