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Large Seebeck coefficients in iron‐oxypnictides: a new route towards n‐type thermoelectric materials

2008; Wiley; Volume: 2; Issue: 4 Linguagem: Inglês

10.1002/pssr.200802125

1862-6270

L. Pinsard-Gaudart, David Bérardan, J. Bobroff, Nita Dragoe,

Advanced Condensed Matter Physics

The iron-oxypnictide compounds, recently reported as a new class of superconductors when appropriately doped, exhibit large Seebeck coefficients, of the order of -100 microV/K, while keeping good electrical conductivity. Their power factor shows a peak at low temperatures, suggesting possible applications of these materials in thermoelectric cooling modules in the liquid nitrogen temperature range.