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:
影响因子:
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通讯作者:
M. Mizumaki;Takashi Saito;T. Uozumi;Y. Shimakawa
中科院分区:
文献类型:
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作者:
M. Mizumaki;Takashi Saito;T. Uozumi;Y. Shimakawa
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.