论文标题
流动铁磁体中磁晶各向异性的温度依赖性
Temperature Dependence of Magnetocrystalline Anisotropy in Itinerant Ferromagnets
论文作者
论文摘要
我们从理论上研究了铁磁金属的有限温度$ t $ t $ t $ t $。假设使用单轴MA的Rashba型Ferromagnet，我们定义了MA常数$ K_ \ MATHRM {u}（t）$来自几个不同概念。我们的目的是检查它们之间的平等，并确认$ k_ \ mathrm {u}（t）$和磁化$ m（t）$之间的功率定律，形式为$ k_ \ mathrm {u}（t）/k_ \ mathrm {U}我们证明，$α$在巡回电子限制中等于2，并且随着通过$α= 3 $的局部特征而增加，这是单型号MA在自旋模型中预测的。
We theoretically investigated magnetocrystalline anisotropy (MA) at a finite temperature $T$ in ferromagnetic metals. Assuming a Rashba-type ferromagnet with uniaxial MA, we defined the MA constants $K_\mathrm{u}(T)$ derived from several different concepts. Our purpose was to examine the equality between them and to confirm a power law between $K_\mathrm{u}(T)$ and magnetization $M(T)$ in the form of $K_\mathrm{u}(T)/K_\mathrm{u}(0)=[M(T)/M(0)]^α$. We demonstrate that $α$ equals 2 in the itinerant-electron limit and increases with the localized feature of electrons passing through $α=3$, predicted for the single-ion MA in spin models.
