Superconductors consisting of CuO{sub 2} and RuO{sub 2} layers
- Universitaet Bayreuth (Germany)
The authors have synthesized compounds which may be viewed as stacking of pairs of CuO{sub 2} layers alternating with RuO{sub 2} layers. There are two structural variants, RuSr{sub 2}GdCu{sub 2}O{sub 8{minus}{delta}} and RuSr{sub 2}Gd{sub 1+x}Ce{sub 1{minus}x}Cu{sub 2}O{sub 10{minus}{delta}}, which are denoted shortly 1212 and 1222 structures. In their stacking sequence, they differ solely by the sheets separating the CuO{sub 2} bilayers. The synthesis of these phases is accompanied by the formation of small amounts of SrRuO{sub 3} impurities, which appear to have a much more devastating effect on the superconducting properties of the 1212 phase as compared to the 1222 phase. The authors present an investigation of the influence of various synthesis procedures on the appearance of impurity phases and on superconductivity in the 1212 system.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 443707
- Report Number(s):
- CONF-960808--
- Journal Information:
- Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 5-6 Vol. 105; ISSN JLTPAC; ISSN 0022-2291
- Country of Publication:
- United States
- Language:
- English
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