Iron‐based semiconducting half‐Heusler alloys for thermoelectric applications

NS Chauhan, Y Miyazaki - ChemNanoMat, 2023 - Wiley Online Library
Iron‐based half‐Heusler alloys constitute an emerging class of semiconducting
intermetallics for scalable and efficient thermoelectric conversion, owing to their remarkably …

A mechanistic view of defect engineered VFeSb half-Heusler alloys

NS Chauhan, Y Miyazaki - Materials Advances, 2022 - pubs.rsc.org
Defects are ubiquitous and extensively found in a half-Heusler microstructure, and often
yield a significant variation in its transport properties. There remains a critical gap in …

Constitution of the systems {V, Nb, Ta}-Sb and physical properties of di-antimonides {V, Nb, Ta} Sb2

F Failamani, P Broz, D Maccio, S Puchegger, H Müller… - Intermetallics, 2015 - Elsevier
The binary phase diagrams {V, Nb, Ta}-Sb below 1450° C were studied by means of XRPD,
EPMA, and DTA measurements. In the V-Sb system, five stable binary phases were …

Outstanding thermoelectric performance of n-type half-Heusler V (Fe1− xCox) Sb compounds at room-temperature

Y Huang, K Hayashi, Y Miyazaki - Acta Materialia, 2021 - Elsevier
The effects of cobalt substitution at the Fe-site on the crystal structure, electronic structure
and thermoelectric (TE) properties of half-Heusler (HH) V (Fe 1− x Co x) Sb compounds are …

Electron conduction mechanism of deficient half-Heusler VFeSb compound revealed by crystal and electronic structure analyses

Y Huang, K Hayashi, Y Miyazaki - Chemistry of Materials, 2020 - ACS Publications
The crystal structure, electronic structure, and thermoelectric properties of a half-Heusler
VFeSb (HH-VFeSb) compound are investigated. The HH-VFeSb compound is successfully …

Semi-adsorption-controlled growth window for half-Heusler FeVSb epitaxial films

EH Shourov, R Jacobs, WA Behn, ZJ Krebs… - Physical Review …, 2020 - APS
The electronic, magnetic, thermoelectric, and topological properties of Heusler compounds
(composition XYZ or X 2 YZ) are highly sensitive to stoichiometry and defects. Here we …

Enhancement of thermoelectric properties at room temperature through isoelectronic ruthenium-substitution in n-type half-Heusler VFeSb compounds

Y Huang, K Hayashi, Y Miyazaki - Acta Materialia, 2022 - Elsevier
The effects of ruthenium (Ru) substitution on the thermoelectric properties of half-Heusler
(HH) V (Fe 1− x Ru x) Sb compounds have been theoretically and experimentally …

Structure and magnetism in epitaxial nanocomposite films

EH Shourov, C Zhang, PM Voyles, JK Kawasaki - Physical Review Materials, 2021 - APS
The combination of ferromagnetism and semiconducting behavior offers an avenue for
realizing novel spintronics and spin-enhanced thermoelectrics. Here we demonstrate the …

Experimental and DFT study of the V–Co–Sb ternary system

L Romaka, VV Romaka, N Melnychenko… - Journal of Alloys and …, 2018 - Elsevier
The phase diagram of the V–Co–Sb ternary system was constructed at 870 K over the whole
concentration range using X-ray powder diffraction and electron probe microanalysis. The …

Features of conductivity mechanisms in heavily doped compensated V1–x Ti x FeSb Semiconductor

VA Romaka, P Rogl, VV Romaka, D Kaczorowski… - Semiconductors, 2016 - Springer
The crystal and electronic structure and also the energy and kinetic properties of n-VFeSb
semiconductor heavily doped with the Ti acceptor impurity are investigated in the …