449 citations · 1.6k across the 36 of their papers we have counts for
36 papers
Synergetic enhancement of power factor and suppression of lattice thermal conductivity via electronic structure modification and nanostructuring on Ni and B co-doped p-type Si-Ge alloy
Muthusamy Omprakash, Saurabh Singh, Keisuke Hirata +7
For simultaneously achieving the high-power factor and low lattice thermal conductivity of Si-Ge based thermoelectric materials, we employed, in this study, constructively modifyin…
Capacitor Type Thin-Film Heat Flow Switching Device
Keisuke Hirata, Takuya Matsunaga, Saurabh Singh +2
We developed a capacitor type heat flow switching device, in which electron thermal conductivity of the electrodes is actively controlled through the carrier concentration varied b…
Distinctive Thermoelectric Properties of Supersaturated Si-Ge-P Compounds: Achieving Figure of Merit ZT > 3.6
Swapnil Ghodke, Omprakash Muthusamy, Kevin Delime Codrin +9
The efficiency of energy conversion in thermoelectric generators (TEGs) is directly proportional to electrical conductivity and Seebeck coefficient while inversely to thermal condu…
Large-gap magnetic topological heterostructure formed by subsurface incorporation of a ferromagnetic layer
Toru Hirahara, Sergey V. Eremeev, Tetsuroh Shirasawa +17
Inducing magnetism into topological insulators is intriguing for utilizing exotic phenomena such as the quantum anomalous Hall effect (QAHE) for technological applications. While m…
Surface Kondo Effect and Non-Trivial Metallic State of the Kondo Insulator YbB12
Kenta Hagiwara, Yoshiyuki Ohtsubo, Masaharu Matsunami +13
A synergistic effect between strong electron correlation and spin-orbit interaction (SOI) has been theoretically predicted to result in a new topological state of quantum matter on…
Electronic structure of Mott-insulator CaCu3Ti4O12: Photoemission and inverse photoemission study
H. J. Im, M. Iwataki, S. Yamazaki +10
We have performed the photoemission and inverse photoemission experiments to elucidate the origin of Mott insulating states in A-site ordered perovskite CaCuTiO (CCT…