A Mössbauer study of Bi2Sr2Ca n-1 (Cu,Fe) n O y (n=1,2,3) oxide superconductors |
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| Authors: | Katsuro Oda Takayo Hasegawa Yasuhiro Fujimori Kouji Sugihara Seiiti Kato Hiromitsu Ino |
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| Affiliation: | (1) Department of Materials Science, Faculty of Engineering, The University of Tokyo, 7-3-1 Hongo, 113 Bunkyo-ku, Tokyo, Japan;(2) Showa Electric Wire & Cable Co.Ltd., 1-1-2 Odasakae Kawasaki-ku, 210 Kawasaki-shi Kanagawa, Japan;(3) Present address: Department of Materials Science, University of Tsukuba, 305 Tsukuba-shi, Ibaragi, Japan |
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| Abstract: | Mossbauer spectra of57Fe have been measured for Bi2Sr2Can-1(Cu, Fe)nOy (n=1,2,3) oxide superconductors. Each spectrum was decomposed to a single set or two sets of double peaks. The assignment of these peaks to the specific sites for the iron atoms are discussed. The 4 fold planar sites of Cu2O plane are preferentially substituted by Fe atoms. |
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