Magnetization and configurational anisotropy in magnetic clusters: Monte Carlo simulation
- Zhigao Huang
- Zhigao Chen
- Fengming Zhang
- Youwei Du
DOIAbstract
Based on the Monte Carlo simulation, the magnetic properties of the clusters, e.g. magnetization, Curie temperature, hysteresis, coercivity, natural angle and energy distribution etc., have been calculated. It has been found that, for the pure ferromagnetic cluster, the $T^{_{^{3/2}}}$ Bloch law is well satisfied at low temperature ($T<0.5 T_{C}$) and Bsur is equal to $3 B_{bulk}$. Meanwhile, there are clear indications that B increases drastically with the reducing atomic number N which is consistent with the experimental facts. The results have been evalucted using the Bloch exponent law in the approximate crystalline approximation. It has also been demonstrated that the size dependence of the Curie temperature can be described by finite...
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