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Topological Electronic Structure and Transport Properties of the Distorted Rutile-type WO
Yuto Muramatsu, Daigorou Hirai, Mitsuaki Kawamura +6
We elucidate the transport properties and electronic structures of distorted rutile-type WO2. Electrical resistivity and Hall effect measurements of high-quality single crystals re…
Prediction of quaternary hydrides based on densest ternary sphere packings
Ryotaro Koshoji, Masahiro Fukuda, Taisuke Ozaki
We exhaustively search quaternary metal hydrides based on the (13-2-1) and (13-3-1) structures that are the two of the putative densest ternary sphere packings in cubic systems [R.…
Methods for constructing parameter-dependent flat band lattices
Toshitaka Ogata, Mitsuaki Kawamura, Taisuke Ozaki
We present two methods for constructing a flat band (FB) system having a flat energy dispersion over the entire Brillouin zone within tight-binding model, where the resulting Hamil…
Scaling law for the Rashba-type spin splitting in quantum well films
Ryo Noguchi, Kenta Kuroda, Mitsuaki Kawamura +7
We use laser-based spin- and angle-resolved photoemission spectroscopy (laser-SARPES) with high-resolution, and experimentally determine, for the first time, the Rashba-parameters…
Densest binary sphere packings and phase diagram : revisited
Ryotaro Koshoji, Mitsuaki Kawamura, Masahiro Fukuda +1
We revisit the densest binary sphere packings (DBSP) under the periodic boundary conditions and present an updated phase diagram, including newly found 12 putative densest structur…
Possible Kitaev Quantum Spin Liquid State in 2D Materials with S=3/2
Changsong Xu, Junsheng Feng, Mitsuaki Kawamura +6
Quantum spin liquids (QSLs) form an extremely unusual magnetic state in which the spins are highly correlated and fluctuate coherently down to the lowest temperatures, but without…