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Structure and spin gap in YBa2Cu3−xGdxO7−δ superconductors
- Source :
-
Physica C . Dec2004, Vol. 417 Issue 1/2, p63-68. 6p. - Publication Year :
- 2004
-
Abstract
- Abstract: Gd-doped poly-crystallized YBa2Cu3−xGdxO7−δ compounds with x=0–0.15 were synthesized using the solid-state reaction technique. We found that Gd3+ ions prefer to replace Cu at Cu(2) sites (CuO2 planar) within x<0.05, which may due to the ion size effect, and Gd3+ ions then begin to partially occupy Cu(1) sites (CuO chain) with increasing the doping content, which gives vital influence on superconductivity and spin-gap properties. There is no clear role on spin gap opening temperature played by magnetic element doping. [Copyright &y& Elsevier]
- Subjects :
- *SUPERCONDUCTORS
*SOLID state electronics
*IONS
*SUPERCONDUCTIVITY
Subjects
Details
- Language :
- English
- ISSN :
- 09214534
- Volume :
- 417
- Issue :
- 1/2
- Database :
- Academic Search Index
- Journal :
- Physica C
- Publication Type :
- Academic Journal
- Accession number :
- 15561399
- Full Text :
- https://doi.org/10.1016/j.physc.2004.10.008