Nature of copper in the new cuprate superconductors Pb2Sr2Ca1-xLxCu3O8+δ

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Title:	Nature of copper in the new cuprate superconductors Pb2Sr2Ca1-xLxCu3O8+δ
Authors:	Rao, C N R Bhat, V Nagarajan, R Rao, G Ranga Sankar, G
Keywords:	X-ray absorption spectra Photoemission and photoelectron spectra
Issue Date:	1-May-1989
Publisher:	American Physical Society
Citation:	Physical Review B 39(13), 9621-9623 (1989)
Abstract:	Based on Cu K-edge absorption spectroscopy as well as Cu(2p3/2) and Cu(LVV) Auger spectroscopies it is shown that the recently discovered Pb2Sr2Ca1-xLxCu3O8+δ (L=Y or Lu) superconductors contain well-defined Cu1+ species in admixture with Cu2+. The proportion of Cu1+ is small in the nonsuperconducting samples with x=1, a feature which is uniquely different from that in YBa2Cu3O7-δ.
Description:	Restricted Access
URI:	https://libjncir.jncasr.ac.in/xmlui/10572/736
Other Identifiers:	0163-1829
Appears in Collections:	Research Papers (Prof. C.N.R. Rao)

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