摘要We investigate systematically the local field distribution functions of up-spins for systems of dipolar interaction, with particular emphasis on Ising-type lattice systems. It is found that as the fraction increases, the shape of the distribution function changes from Lorentzian to Gaussian. In addition, sub-peaks can be induced in the distribution function by non-cubic lattice structures. This is in stark contrast with a dilute gas system, where the distribution has only one Lorentzian peak for any up-spin fraction.
Abstract：We investigate systematically the local field distribution functions of up-spins for systems of dipolar interaction, with particular emphasis on Ising-type lattice systems. It is found that as the fraction increases, the shape of the distribution function changes from Lorentzian to Gaussian. In addition, sub-peaks can be induced in the distribution function by non-cubic lattice structures. This is in stark contrast with a dilute gas system, where the distribution has only one Lorentzian peak for any up-spin fraction.
YAN Yue;WU Biao**. Local Field Distributions in Systems with Dipolar Interaction[J]. 中国物理快报, 2012, 29(1): 13203-013203.
YAN Yue, WU Biao**. Local Field Distributions in Systems with Dipolar Interaction. Chin. Phys. Lett., 2012, 29(1): 13203-013203.
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