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Publication Citation: Thermopower of Co-doped FeSe0.82

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Author(s): Evan L. Thomas; Winnie K. Wong-Ng; Daniel P. Phelan;
Title: Thermopower of Co-doped FeSe0.82
Published: April 01, 2009
Abstract: The effect of cobalt doping (0.05 ≤ x ≤ 0.50) on the thermopower of the newly discovered superconductor FeSe0.82 is investigated through electrical and thermal transport measurements. Our results point to the destruction of superconductivity at very low Co concentrations. Thermopower data suggest negative charge carriers along with a large enhancement of the Seebeck coefficient S on the order of ≈ -80 uV/K around T = 100 K.
Citation: Journal of Applied Physics
Volume: 105
Issue: 7
Keywords: thermopower; iron selenide; FeSe; power factor screening tool; superconductivity
Research Areas: Energy Conversion, Storage, and Transport, Metals, Energy