Magnetic Properties of the System SrCo_<1-x>_Fe_xO_<3-y>
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概要
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Samples of the system SrCo_<1-x>Fe_xO_<3-y> (0〓x〓1, 0〓y〓0.5) have been prepared under varying oxygen pressure and temperature, and their crystallographic and magnetic properties have been studied. SrCoO_<2.5> with brown-millerite type structure (high temperature phase) is an antiferromagnet with the Neel temperature of 570K and the Co^<3+>-O^<2->-Co^<3+> superexchange interaction is strongly anti-ferromagnetic. SrCoO_3 and SrCo_<1-x>FexO_3 (x<0.9) with the cubic perovskite structure (high temperature phase) are ferromagnetic with the Curie temperature at about 200K and the magnetization decreases rapidly with increasing x near SrFeO_3 Whose magnetic structure is helical.
- 東北大学の論文
著者
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Takeda Takayoshi
The Research Institute For Iron Steel And Other Metals
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Watanabe Hiroshi
The Research Institute For Iron Steel And Other Metals Tohoku University
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Watanabe Hiroshi
The Research Institute For Iron Steel And Other Metals
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