Theory of the Field Dependence of the Néel Temperature in Quasi One-Dimensional Antiferromagnets
Theory of the Field Dependence of the Néel Temperature in Quasi One-Dimensional Antiferromagnets
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准一维反铁磁体中尼尔温度的场相关理论
DOI：
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发表时间：
1981
期刊：
影响因子：
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通讯作者：
M. Blume
中科院分区：
文献类型：
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作者：
T. Oguchi;M. Blume
本文用Oguchi第一平均场理论解释了反铁磁体的Neel温度TN与磁场的关系。结果表明，当T N处的自旋熵较大时，T N在适当大小的均匀磁场中增大。后一种情况发生时，反铁磁体是准一维的各向异性能量小。
The field dependence of the Neel temperature T N of an antiferromagnet is explained by use of the Oguchi first mean field theory. It is shown that T N increases in a uniform magnetic field of appropriate magnitude when the spin entropy at T N is large. The latter condition occurs when the antiferromagnet is quasi one-dimensional with small anisotropy energy.