ROLE OF ANISOTROPIC EXCHANGE INTERACTIONS IN DETERMINING THE PROPERTIES OF SPIN-GLASSES
ROLE OF ANISOTROPIC EXCHANGE INTERACTIONS IN DETERMINING THE PROPERTIES OF SPIN-GLASSES
复制标题
DOI：
10.1103/physrevlett.44.1538
复制
发表时间：
1980-01-01
影响因子：
8.6
通讯作者：
LEVY, PM
中科院分区：
文献类型：
--
作者：
FERT, A;LEVY, PM
最近对Cu Mn自旋玻璃合金的测量表明，在初始施加场的方向上保持剩磁的各向异性场通过添加掺杂的Au或Pt杂质而强烈增强。我们发现，这些结果可以解释由Mn自旋之间的Dzyaloshinsky-Moriya型相互作用的存在所产生的自旋轨道散射的传导电子的杂质。这些相互作用的幅度是惊人的大。
Recent measurements on Cu Mn spin-glass alloys have revealed that the anisotropy field maintaining the remanent magnetization in the direction of the initial applied field is strongly enhanced by the addition of nonmagnetic Au or Pt impurities. We show that these results can be accounted for by the existence of Dzyaloshinsky-Moriya-type interactions between the Mn spins arising from spin-orbit scattering of the conduction electrons by nonmagnetic impurities. The magnitude of these interactions is surprisingly large.