TY - JOUR
T1 - Critical indices for the two-dimensional Ising model with nearest-neighbor and next-nearest-neighbor interactions
AU - Tanaka, Kazuyuki
AU - Horiguchi, Tsuyoshi
AU - Morita, Tohru
PY - 1992/5/18
Y1 - 1992/5/18
N2 - We investigate the critical behavior of the Ising model with nearest-neighbor and next-nearest-neighbor interactions on the square lattice by combining a cluster variation method and the coherent-anomaly method. We estimate the values of the critical indices ν and γ for several values of |J′|/Jfor J′<-0.5J, which show the breakdown of the universality.
AB - We investigate the critical behavior of the Ising model with nearest-neighbor and next-nearest-neighbor interactions on the square lattice by combining a cluster variation method and the coherent-anomaly method. We estimate the values of the critical indices ν and γ for several values of |J′|/Jfor J′<-0.5J, which show the breakdown of the universality.
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U2 - 10.1016/0375-9601(92)90048-Q
DO - 10.1016/0375-9601(92)90048-Q
M3 - Article
AN - SCOPUS:0038301923
SN - 0375-9601
VL - 165
SP - 266
EP - 270
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 3
ER -