Comment on ''Anomalous peak in the thermopower of YBa2Cu3O7-δ single crystals: A possible fluctuation effect''

G. Yu Logvenov, V. V. Ryazanov, R. Gross, F. Kober

Research output: Contribution to journalReview articlepeer-review

10 Scopus citations

Abstract

In an experiment of Howson et al. the temperature dependence of the thermopower of a YBa2Cu3O7-δ single crystal was measured with an oscillating heat source. A sharp peak in the temperature dependence of the thermopower in the vicinity of the critical temperature was observed. In contrast, Ri et al., who used a dc technique, could not observe such a peak. We show that the observation of the peak may be an artifact of the ac measuring technique used by Howson et al.

Original languageEnglish
Pages (from-to)15322-15323
Number of pages2
JournalPhysical Review B
Volume47
Issue number22
DOIs
StatePublished - 1993
Externally publishedYes

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