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6 papers
Substitution effects in RuO single crystals
Shubhankar Paul, Kunihiko Yamauchi, Shogo Yamashita +7
RuO has emerged as one of the leading candidates for investigating altermagnetism. Recent quantum oscillation and angle-resolved photoemission spectroscopy measurements found t…
High-pressure electronic states in semiconductors studied by infrared spectroscopy: metallization and band gap tuning in MgSi, InAs and InSb
Hidekazu Okamura, Haruna Okazaki, Katsunori Marugaku +8
In this article, a brief introduction is first given on infrared studies of materials at high pressures using a diamond anvil cell. Then, our recent results of high-pressure infrar…
Magnetic field-driven transition between valence bond solid and antiferromagnetic order in distorted triangular lattice
Yasuhiro Shimizu, Mitsuhiko Maesato, Makoto Yoshida +8
A molecular Mott insulator -(ET)B(CN) [ET = bis(ethylenedithio)tetrathiafulvalene] with a distorted triangular lattice exhibits a quantum disordered state with gapped sp…
A molecular diamond lattice antiferromagnet as a Dirac semimetal candidate
Yasuhiro Shimizu, Akihiro Otsuka, Mitsuhiko Maesato +6
The ground state of a molecular diamond-lattice compound (ET)Ag(CN) is investigated by the magnetization and nuclear magnetic resonance spectroscopy. We found that the syst…
Pressure-Tuned Exchange Coupling of a Quantum Spin Liquid in the Molecular Triangular Lattice -(ET)Ag(CN)
Yasuhiro Shimizu, Takaaki Hiramatsu, Mitsuhiko Maesato +8
The effects of pressure on a quantum spin liquid are investigated in an organic Mott insulator -(ET)Ag(CN) with a spin-1/2 triangular lattice. The application of neg…
Spin Liquid State in an Organic Mott Insulator with Triangular Lattice
Y. Shimizu, K. Miyagawa, K. Kanoda +2
H NMR and static susceptibility measurements have been performed in an organic Mott insulator with nearly isotropic triangular lattice, -(BEDT-TTF)Cu(CN)…