7 citations · 21 across the 17 of their papers we have counts for
9 papers · 1 filter
Ideal band structures for high-performance thermoelectric materials with band convergence
Yuya Hattori, Hidetomo Usui, Yoshikazu Mizuguchi
We investigate optimal band structures in band-converged systems to achieve high zT using numerical calculations based on a virtual spectral conductivity model. We consider a two p…
Anharmonic lattice dynamics study of phonon transport in layered and molecular-crystal indium iodides
Takuma Shiga, Yoshikazu Mizuguchi, Hiroshi Fujihisa
Indium iodides, which adopt layered or molecular-crystal-like arrangements depending on composition, are expected to exhibit low lattice thermal conductivity because of their heavy…
Time-Temperature-Transformation (TTT) Diagrams to rationalize the nucleation and quenchability of metastable -LiPS
Akira Miura, Woohyeon Baek, Yuta Fujii +12
-LiPS is a promising solid-state electrolyte with the highest ionic conductivity among its polymorphs. However, its formation presents a thermodynamic paradox: the -p…
Uniaxial negative thermal expansion in a weak-itinerant-ferromagnetic phase of CoZrH
Yuto Watanabe, Kota Suzuki, Takayoshi Katase +3
We discovered unique uniaxial negative thermal expansion (NTE) behavior for a weak-itinerant-ferromagnetic phase of CoZrH. CoZr is known as a superconductor ex…
Huge anisotropic magneto-thermal switching in high-purity polycrystalline compensated metals
Poonam Rani, Yuto Watanabe, Takuma Shiga +6
Magneto-thermal transport is a promising physical property for thermal management applications. Magneto-thermal switching enables active control of heat flows, and a high switching…
High entropy effect on thermoelectric properties of nonequilibrium cubic phase of AgBiSe2-2xSxTex with x = 0-0.6
Asato Seshita, Aichi Yamashita, Takayoshi Katase +1
Silver bismuth diselenide (AgBiSe2) has much attention as an efficient thermoelectric material due to its low thermal conductivity. However, AgBiSe2 exhibits multiple crystal struc…
Stabilization and high thermoelectric performance of high-entropy-type cubic AgBi(S, Se, Te)2
Asato Seshita, Aichi Yamashita, Takeshi Fujita +6
As thermoelectric generators can convert waste heat into electricity, they play an important role in energy harvesting. The metal chalcogenide AgBiSe2 is one of the high-performanc…
Spontaneous formation of Frenkel defects in high-entropy-alloys-type compound
Rikuya Ishikawa, Kyohei Takae, Yoshikazu Mizuguchi +1
High-entropy alloys (HEAs) are attracting attention due to their exceptional properties, such as enhanced mechanical toughness, superconducting robustness, and thermoelectric perfo…
Enhanced thermoelectricity by controlled local structure in bismuth-chalcogenides
K. Terashima, Y. Yano, E. Paris +7
Spectroscopic techniques, including photoelectron spectroscopy, diffuse reflectance, and x-ray absorption, are used to investigate the electronic structure and the local structure…