Low-temperature in-plane thermal conductivity of untwinned YBa2Cu3O6.9 crystals

K. Behnia, L. Taillefer, R. Gagnon, Z. Gold, M. Ribault

Research output: Contribution to journalArticlepeer-review

Abstract

The thermal conductivity of high-quality untwinned single crystals of YBa2Cu3O6.9 was studied as a function of temperature (0.1 K < T < 1 K) and with heat current injected along two different orientations (a and b crystalline axes). We detect the presence of a linear term with comparable magnitude for the two orientations. This is in contrast with the high-temperature data, where an anisotropic behaviour is reported. The possible electronic origin of the linear term and its implication for the gap symmetry are discussed.

Original languageEnglish
Pages (from-to)1611-1612
Number of pages2
JournalSynthetic Metals
Volume71
Issue number1-3
DOIs
Publication statusPublished - 1 Apr 1995
Externally publishedYes

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