Giant Nernst effect and bipolarity in the quasi-one-dimensional metal Li 0.9Mo 6O 17

J. L. Cohn, B. D. White, C. A.M. Dos Santos, J. J. Neumeier

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19 Scopus citations

Abstract

The Nernst coefficient for the quasi-one-dimensional metal, Li 0.9Mo 6O 17, is found to be among the largest known for metals (ν 500μV/KT at T∼20K), and is enhanced in a broad range of temperature by orders of magnitude over the value expected from Boltzmann theory for carrier diffusion. A comparatively small Seebeck coefficient implies that Li 0.9Mo 6O 17 is bipolar with large, partial Seebeck coefficients of opposite sign. A very large thermomagnetic figure of merit, ZT∼0.5, is found at high field in the range T?35-50K.

Original languageEnglish (US)
Article number056604
JournalPhysical Review Letters
Volume108
Issue number5
DOIs
StatePublished - Feb 2 2012

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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