The state of 57Fe in pure and oxidized tin chalcogenides by Mössbauer spectroscopy |
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Authors: | Vincenzo Fano Ida Ortalli |
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Institution: | MASPEC Laboratory of the C.N.R., Parma, Italy;Physics Institute, University of Parma and G.N.S.M. Parma, Italy |
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Abstract: | A Mössbauer spectroscopy study has been made of the stabilization states of 57Fe in pure tin chalcogenides. The values of the isomer shifts and the quadrupole splittings lead to the conclusion that iron presents the electronic configuration 3d54sx at high spin in the interstitial position. This result is confirmed varying the 57Fe neighbours by partial substitution of tellurium with oxygen. In this case, too, the values of Mössbauer parameters confirm the same results. The quadrupole moment present in pure SnTe doped 57Co, and the shift of isomer shift towards less positive values for the oxidizated samples have been qualitatively justified as well. |
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