Spin-glass-ferromagnetic-paramagnetic multicritical point.
Spin-glass-ferromagnetic-paramagnetic multicritical point.
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自旋玻璃-铁磁-顺磁多临界点。
DOI:
10.1103/physrevlett.67.899
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发表时间:
1991
影响因子:
8.6
通讯作者:
M. S. Singh
中科院分区:
文献类型:
--
作者:
M. S. Singh
We study the criticality at the spin-glass-ferromagnetic-paramagnetic multicritical point in the d=3, ±J distribution, random-bond Ising model. Using high-temperature expansions to order T -34 , we estimate that the multicritical point N lies on the Nishimori line at T c /J=1.690±0.016. Along this line the critical exponents are found to be γ=1.80±0.15 and v=0-85±0.08. The latter is clearly consistent with the rigorous exponent inequality v≥2/d