Systematic thermopower behaviour in superconductors

A. B. Kaiser, C. K. Subramaniam, B. Ruck, M. Paranthaman

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The in-plane thermopower of most of the cuprate superconductors (including the new Hg-based materials) shows a systematic pattern as the hole concentration is increased and conductivity increases, namely an approximately temperature-independent shift to more negative values. This pattern is intimately related to the value of Tc, and so possibly to the mechanism of the superconductivity. In the overdoped limit where Tc is reduced, the thermopower is often approximately proportional to temperature, as for conventional metallic diffusion thermopower, and as seen in fullerene superconductors. A remarkably similar pattern of thermopower shifts (but of smaller magnitude) is seen in NbN films. The similarity of cuprate and non-cuprate thermopower suggests a qualitatively similar mechanism.

Original languageEnglish
Pages (from-to)1583-1584
Number of pages2
JournalSynthetic Metals
Volume71
Issue number1-3
DOIs
StatePublished - Apr 1 1995

Fingerprint

Dive into the research topics of 'Systematic thermopower behaviour in superconductors'. Together they form a unique fingerprint.

Cite this