Mössbauer study on Fe-sitting site and origin of magnetic order in YBa2(Cu0.95Fe0.05)3O7−δ |
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| Authors: | T. Tamaki M. Nishizawa A. Ito T. Fujita |
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| Affiliation: | (1) Department of Physics, Faculty of Science, Ochanomizu University, Bunkyo-ku, 112 Tokyo, Japan;(2) Department of Physics, Faculty of Science, Hiroshima University, 730 Hiroshima, Japan |
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| Abstract: | Fe-sitting sites and the origin of magnetic order in YBa2(Cu0.95Fe0.05)3O7?δ have been studied by comparing the Mössbauer spectra observed before and after heat-treatments at 300°C in vacuum. Both of the major quadrupole doublets D-1 and D-2 are assigned to originate from Fe’s replacing Cu1’s. It is also suggested that fluctuations of Cu2 spins play an important role for inducing the magnetic order. |
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