77 citations · 209 across the 11 of their papers we have counts for
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Possible helimagnetic order in Co4+-containing perovskites Sr1-xCaxCoO3
Hidefumi Takahashi, Masaho Onose, Yasuhito Kobayashi +7
We systematically synthesized perovskite-type oxides Sr1-xCaxCoO3 containing unusually high valence Co4+ ions by a high pressure technique, and investigated the effect of systemati…
High-Pressure Synthesis of a Massive and Non-Symmorphic Dirac Semimetal Candidate MoP
Alex Hiro Mayo, Jon Alexander Richards, Hidefumi Takahashi +1
Single crystal and polycrystalline samples of MoP with a black-phosphorus-derived structure have been successfully synthesized by a high-pressure technique. The polycrystalline…
Switching of band inversion and topological surface states by charge density wave
N. Mitsuishi, Y. Sugita, M. S. Bahramy +14
Topologically nontrivial materials host protected edge states associated with the bulk band inversion through the bulk-edge correspondence. Manipulating such edge states is highly…
Giant enhancement of cryogenic thermopower by polar structural instability in the pressurized semimetal MoTe2
Hidefumi Takahashi, Kento Hasegawa, Tomoki Akiba +3
We found that a high mobility semimetal 1T'-MoTe2 shows a significant pressure-dependent change in the cryogenic thermopower in the vicinity of the critical pressure, where the pol…
Intrinsic effects of substitution and intercalation on thermal transport in two-dimensional TiS single crystals
Ramzy Daou, Hidefumi Takahashi, Sylvie Hébert +3
The promising thermoelectric material TiS can be easily chemically doped and intercalated. We present here studies of single crystals that are intercalated with excess Ti or Co…