Possible oxygen hopping in the YBa2Cu3O7 system observed by Mössbauer spectroscopy |
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| Authors: | E Baggio Saitovitch R B Scorzelli I Souza Azevedo H Micklitz |
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| Institution: | 1. Centro Brasileiro de Pesquisas Físicas-CBPF, Rua Dr. Xavier Sigaud, 150, 22290, Rio de Janeiro, RJ-Brazil
2. Exp. Phys. IV, Ruhr-Universit?t Bochum, D-4630, Bochum, FRG
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| Abstract: | In situ high temperature57Fe Mössbauer measurements have been performed on samples of YBa2 (Cu1?xFex)3O7?δ withx=0.005 andx=0.010, in pure oxygen or in air, in the range 295 K≤T≤640 K. TheT-dependence of Fe species, of the Debye-Waller factorf(T) as well as of the hyperfine parameters is analysed. |
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