Chain-site versus plane-site Cu substitution in YBa2Cu3-xMxO7 (M=Co,Ni): Hall and thermopower studies

J. Clayhold, S. Hagen, Z. Z. Wang, Nai Phuan Ong, J. M. Tarascon, P. Barboux

Research output: Contribution to journalArticle

94 Scopus citations

Abstract

Substitution of Cu by Ni at Cu(2) (plane) sites in YBa2Cu3O7 has a weak effect on the Hall constant, but turns the thermopower negative. In contrast, substitution at Cu(1) (chain) sites by Co decreases the Hall number exponentially. The suppression of Tc is due to different mechanisms in the two cases. We discuss how doping affects the carrier density, and the evidence in favor of a filling factor of in the undoped system.

Original languageEnglish (US)
Pages (from-to)777-780
Number of pages4
JournalPhysical Review B
Volume39
Issue number1
DOIs
StatePublished - Jan 1 1989

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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