By studying correlation functions of two replicas with the damage spreading method, the spin glass transition temperature of the 3D ±J EA model is evaluated by using Campbell's criterion D (Tg, t → ∞) = 1/2 or [Formula: see text], where D and [Formula: see text] are the Hamming distance and the overlap of the two replicas, respectively. The two replicas evolve with the same series of the random numbers and with initial spin-configurations related to each other by [Formula: see text] (for all i). From our simulational data for system sizes up to L = 64, the spin glass transition temperature is estimated as Tg = 1.18 ± 0.06. The replica simulational method and the damage spreading method are compared with each other. The relaxation exponents of the magnetization and the correlation functions are also estimated in the vicinity of Tg on a large lattice and the dynamical critical exponent z is estimated as z ≃ 6.0.
Effect of Adding of V and Co Atoms on the Spin Glass Transition Temperature of Fe0.7-xMxAl0.30Alloys
