If a 3d-4f magnet experiences a spin reorientation at a high temperature, it proceeds in an abrupt fashion, as a first-order phase transition, and is accompanied by release or absorption of heat. It is demonstrated that this latent heat amounts to two times the anisotropy constant of the 3d sublattice. This prediction is corroborated by the available experimental data. The same approach provides an estimate for the accompanying entropy change, which suggests that spin reorientation transitions cannot compete in this respect with ferromagnetism-paramagnetism or ferro-magnetism-antiferromagnetism transitions. (c) 2007 American Institute of Physics.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据