Phosphate derivatives of 123 cuprates of the formula LnSr2Cu3O7 (Ln = Gd, Dy, Ho)

R. Nagarajan; Ravi C. Gundakaram; Cnr Rao

doi:10.1016/0038-1098(96)00079-8

Phosphate derivatives of 123 cuprates of the formula LnSr2Cu3O7 (Ln = Gd, Dy, Ho)

Solid State Communications 98(8): 761-764

Article 1996 English

Abstract

1 min read

Partial substitution of Cu in the chain by the phosphate ion stabilizes LnSr2Cu3O7 (Ln = Gd, Dy or Ho) in the 123 structure. The LnSr2Cu2.8(PO4)0.2Oy derivatives exhibit incommensurately modulated structures. The holmium oxy-phosphate derivative has been rendered superconducting by the partial substitution of Ho by Ca.

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