Electronic structure of Cu in ferromagnetic CaCu3Sn4O12

Electronic structure of Cu in ferromagnetic CaCu3Sn4O12
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DOI:
10.1088/1742-6596/428/1/012030
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发表时间:
2013-04
期刊:
Journal of Physics: Conference Series
影响因子:
--
通讯作者:
M. Mizumaki;Takashi Saito;T. Uozumi;Y. Shimakawa
M. Mizumaki;Takashi Saito;T. Uozumi;Y. Shimakawa
中科院分区:
其他
文献类型:
--
作者:
M. Mizumaki;Takashi Saito;T. Uozumi;Y. Shimakawa

文献摘要

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我们通过使用 X 射线吸收和 Cu L3,2- 和 O K-边缘周围的磁圆二色性 (MCD) 测量研究了铁磁化合物 CaCu3Sn4O12 中铜离子的电子结构。在两个边缘,都可以清楚地观察到 MCD 信号。通过使用求和规则,我们可以获得每个 Cu 离子的 Mspin = 0.87 ± 0.01 μB、Morb = 0.07 ± 0.01 μB 和 Mtotal = 0.93 ± 0.02 μB。 Cu 离子的轨道磁矩非常重要,源自自旋轨道相互作用。
We have investigated the electronic structure of Cu ions in ferromagnetic compound CaCu3Sn4O12 by using X-ray absorption and magnetic circular dichroism (MCD) measurements around the Cu L3,2- and O K-edges. In both edges, the signal of MCD were clearly observed. By using sum rules, we could obtained Mspin = 0.87 ± 0.01 μB, Morb = 0.07 ± 0.01 μB, and Mtotal = 0.93 ± 0.02 μB per Cu ion. The orbital magnetic moments of Cu ions are significant and are originated from the spin-orbit interactions.