Huge Thermoelectric Power Factor: FeSb2 versus FeAs2 and RuSb2

Peijie Sun; Niels Oeschler; Simon Johnsen; Bo B. Iversen; Frank Steglich

doi:10.1143/APEX.2.091102

Huge Thermoelectric Power Factor: FeSb2 versus FeAs2 and RuSb2

Strongly Correlated Electrons 2009-10-06 v1 Materials Science

Authors: Peijie Sun , Niels Oeschler , Simon Johnsen , Bo B. Iversen , Frank Steglich

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Abstract

The thermoelectric power factor of the narrow-gap semiconductor FeSb2 is greatly enhanced in comparison to the isostructural homologues FeAs2 and RuSb2. Comparative studies of magnetic and thermodynamic properties provide evidence that the narrow and correlated bands as well as the associated enhanced thermoelectricity are only specific to FeSb2. Our results point to the potential of FeSb2 for practical thermoelectric application at cryogenic temperatures and stimulate the search for new correlated semiconductors along the same lines.

Keywords

thermoelectric power factor FeSb2 FeAs2 RuSb2 narrow-gap semiconductor correlated bands

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@article{arxiv.0910.0784,
  title  = {Huge Thermoelectric Power Factor: FeSb2 versus FeAs2 and RuSb2},
  author = {Peijie Sun and Niels Oeschler and Simon Johnsen and Bo B. Iversen and Frank Steglich},
  journal= {arXiv preprint arXiv:0910.0784},
  year   = {2009}
}

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14 pages, 4 figures, published in Applied Physics Express

Huge Thermoelectric Power Factor: FeSb2 versus FeAs2 and RuSb2

Abstract

Keywords

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