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Mössbauer studies on novel high-Tc (Sn,Sr)-doped La2−2xSr2xCu1−xSnxO4 superconductors by Yang Li; J.A. Larrea J; Elisa Baggio-Saitovitch; G.C. Che; Z.X. Zhao; G.H. Cao; Z.X. Xu is a Physics and Astronomy article available to read on EtoBox.
What is Mössbauer studies on novel high-Tc (Sn,Sr)-doped La2−2xSr2xCu1−xSnxO4 superconductors about?
## Ž . For La Sr Cu Sn O x s 0.075, 0.090 and 0.110 superconductors, the effects of Sn-doping on local mi- crostructure is studied by means of Mossbauer spectroscopy. The results show that Sn ions in the 4 q valence state ̈Ž . Ž . dominantly occupy Cu sites rather than La Sr site. In the view of the effective oxygen content or excess oxygen , the dual role of Sn dopant on the carrier concentration is discussed. We attempt to explain the high transition temperature T in c Ž . Sr,Sn -doped La Sr Cu Sn O samples under the model of amphoteric effect of Sn-doping on the concentration. 2y2 x 2 x 1yx x 4
Who reads Mössbauer studies on novel high-Tc (Sn,Sr)-doped La2−2xSr2xCu1−xSnxO4 superconductors?
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- Author
- Yang Li; J.A. Larrea J; Elisa Baggio-Saitovitch; G.C. Che; Z.X. Zhao; G.H. Cao; Z.X. Xu
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0921-4534)
- Published
- 1999
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)