Tl sub 1-x Pr sub x Sr sub 2-y Pr sub y CuO sub 5-. delta. : First member of the family TlA sub 2 Ca sub m-1 Cu sub m O sub 2m+3 (A = Ba, Sr)

Journal Article · Wed Feb 01 00:00:00 EST 1989 · Journal of Solid State Chemistry; (USA)

DOI:https://doi.org/10.1016/0022-4596(89)90117-5· OSTI ID:6978127

Bourgault, D; Martin, C; Michel, C; Hervieu, M; Provost, J; Raveau, B ^[1]

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1. ISMRa, Caen (France)

The synthesis, structure, and superconducting properties of the first member obtained during the investigation of the Tl-Sr-Cu-O and Tl-Sr-Pr-Cu-O systems are described. In order to check out the structural model corresponding to the first member of the series, TlSr{sub 2}Ca{sub m-1}Cu{sub m}O{sub 2m+3}, structure calculations were performed from x-ray powder data of the oxide Tl{sub 0.8}Sr{sub 1.6}Pr{sub 0.6}CuO{sub 5}. Magnetic measurements show only traces of diamagnetism for Tl{sub 0.7}Pr{sub 0.3}Sr{sub 2}CuO{sub 5-{delta}} and TlSr{sub 2}CuO{sub 5-{delta}}; however, Tl{sub 0.8}Pr{sub 0.6}Sr{sub 1.6}Cu{sub 5-{delta}} exhibits diamagnetism below 40K. 21 refs., 2 figs.

• OSTI ID: 6978127
• Journal Information: Journal of Solid State Chemistry; (USA), Vol. 78:2; ISSN 0022-4596
• Country of Publication: United States
• Language: English

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