Structural, Chemical, Electrical, and Thermal Properties of n-Type NbFeSb
Digital Object Identifier (DOI)
We report on the structural, chemical, electrical, and thermal properties of n-type polycrystalline NbFeSb synthesized by induction melting of the elements. Although several studies on p-type conduction of this half-Heusler composition have recently been reported, including reports of relatively high thermoelectric properties, very little has been reported on the transport properties of n-type compositions. We combine transport property investigations together with short- and long-range structural data obtained by Mössbauer spectroscopy of iron-57 and antimony-121 and by neutron total scattering, as well as first-principles calculations. In our investigation, we show that n-type conduction can occur from antiphase boundaries in this material. This work is intended to provide a greater understanding of the fundamental properties of NbFeSb as this material continues to be of interest for potential thermoelectric applications.
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Citation / Publisher Attribution
Inorganic Chemistry, v. 58, issue 3, p. 1826-1833
Scholar Commons Citation
Hobbis, Dean; Hermann, Raphael P.; Wang, Hsin; Parker, David S.; Pandey, Tribhuwan; Martin, Joshua; Page, Katharine; and Nolas, George S., "Structural, Chemical, Electrical, and Thermal Properties of n-Type NbFeSb" (2019). Physics Faculty Publications. 123.