Superconductivity and Structural Transition in Mo‐Stabilised R 1– x  Ca  x  Sr 2 Cu 3 O y  Compounds (R = Pr, Nd, and Y) | Zendy

Zhao Y. | Zendy; Zhang Y. L. | Zendy; Choi C. H. | Zendy; Chen B. | Zendy; Kennedy H. | Zendy; Sorrell C. C. | Zendy

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Superconductivity and Structural Transition in Mo‐Stabilised R 1– x Ca x Sr 2 Cu 3 O y Compounds (R = Pr, Nd, and Y)

Author(s) -

Zhao Y.,

Zhang Y. L.,

Choi C. H.,

Chen B.,

Kennedy H.,

Sorrell C. C.

Publication year - 1995

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2221900222

Subject(s) - tetragonal crystal system , electrical resistivity and conductivity , analytical chemistry (journal) , superconductivity , oxygen , dopant , transition temperature , crystallography , materials science , x ray crystallography , crystal structure , chemistry , doping , condensed matter physics , physics , diffraction , optics , optoelectronics , organic chemistry , chromatography , quantum mechanics

Sr‐based 123 compounds R 1– x Ca x Sr 2 Cu 2.7 Mo 0.3 O y with R = Pr, Nd, and Y are successfully stabilised by partial substitution of Mo for Cu. A tetragonal‐orthorhomic‐tetragonal transition is observed for R = Y and Nd, which is induced by different oxygen content in the samples. T c of the samples is sensitive to the oxygen content other than the structure. For Pr‐contained samples the resistivity decreases systematically with increasing the Ca dopant and oxygen content. The results show that the hybridisation of the conduction electrons with the 4f band of Pr in Sr‐based 123 compounds is weaker than that in Ba‐based 123 compounds.

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