108 citations · 235 across the 9 of their papers we have counts for
4 papers · 1 filter
Unusual temperature dependence of the band structure associated with local atomic distortion in monolayer 1T'-WTe2
Ryuichi Ando, Katsuaki Sugawara, Tappei Kawakami +4
The ground state of monolayer 1T'-WTe2 has been a target of intensive debate on whether or not it is a two-dimensional topological insulator (2D TI) associated with exciton formati…
In-situ topotactic chemical reaction for spectroscopies
Tappei Kawakami, Kosuke Nakayama, Katsuaki Sugawara +1
Topotactic chemical reaction (TCR) is a chemical process that transforms one crystalline phase to another while maintaining one or more of the original structural frameworks, typic…
Charge order with unusual star-of-David lattice in monolayer NbTe2
Taiki Taguchi, Katsuaki Sugawara, Hirofumi Oka +8
Interplay between fermiology and electron correlation is crucial for realizing exotic quantum phases. Transition-metal dichalcogenide (TMD) 1T-TaS2 has sparked a tremendous attenti…
Electronic states of multilayer VTe2: quasi-one-dimensional Fermi surface and implications to charge-density waves
T. Kawakami, K. Sugawara, T. Kato +4
We have performed angle-resolved photoemission spectroscopy on epitaxial VTe2 films to elucidate the relationship between the fermiology and charge-density waves (CDW). We found th…