77 citations · 190 across the 8 of their papers we have counts for
7 papers
Competing spin modulations in a magnetically frustrated semimetal EuCuSb
Hidefumi Takahashi, Kai Aono, Yusuke Nambu +6
The competing magnetic ground states of the itinerant magnet EuCuSb, which has a hexagonal layered structure, were studied via magnetization, resistivity, and neutron diffraction m…
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…
Impact of antiferromagnetic order on Landau level splitting of quasi-two-dimensional Dirac fermions in EuMnBi
H. Masuda, H. Sakai, M. Tokunaga +7
We report spin-split Landau levels of quasi-two-dimensional Dirac fermions in a layered antiferromagnet EuMnBi, as revealed by interlayer resistivity measurements in a tilted m…
Enhanced thermopower via spin-state modification
Hidefumi Takahashi, Shintaro Ishiwata, Ryuji Okazaki +2
We investigated the effect of pressure on the magnetic and thermoelectric properties of SrYCoO. The magnetization is reduced with the application of…
Anticorrelation between polar lattice instability and superconductivity in the Weyl semimetal candidate MoTe2
H. Takahashi, T. Akiba, K. Imura +6
The relation between the polar structural instability and superconductivity in a Weyl semimetal candidate MoTe2 has been clarified by finely controlled physical and chemical pressu…