# High temperature Seebeck measurements on $YBa_2Cu_3O_{7-\delta}$

Ramasesha, SK and Mathews, Tom and Jacob, KT (1990) High temperature Seebeck measurements on $YBa_2Cu_3O_{7-\delta}$. In: Materials Research Bulletin, 25 (2). pp. 149-155.

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## Abstract

The Seebeck coefficient (S) of $YBa_2Cu_3O_{7-\delta}$ was measured in the temperature range 450 – 1200 K in air and in pure oxygen in order to derive information on charge carrier concentration. The orthorhombic to tetragonal phase transition manifests as maxima in the variation of (dS/dT) with temperature. Seebeck coefficient in air decreases beyond $\sim 1130K$ corresponding to a value of $\delta=0.73$.

Item Type: Journal Article Copyright of this article belongs to Elsevier. Oxides;Superconductors;Yttrium;Barium;Copper Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy) 04 Oct 2007 19 Sep 2010 04:39 http://eprints.iisc.ernet.in/id/eprint/11981