Nature of Pb in superconducting cuprates containing lead: A Pb L3 x-ray absorption near-edge spectroscopy study

Giridhar U. Kulkarni; Gopinathan Sankar; Cnr Rao

doi:10.1063/1.102421

Nature of Pb in superconducting cuprates containing lead: A Pb L3 x-ray absorption near-edge spectroscopy study

Applied Physics Letters 55(4): 388-389

Article 1989 English

Abstract

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X-ray absorption near-edge spectroscopy studies show that Pb in superconducting Tl0.5Pb0.5CaSr2Cu2O7+δ is essentially in the 4+ state while it is in the 2+ state in Pb2Sr2Ca1−xLnxCu3O8+δ.

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