23 citations · 37 across the 4 of their papers we have counts for
4 papers
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…
Contrasting pressure evolutions of electron hybridized states in CeRhIn and YbNiGa: an optical conductivity study
H. Okamura, A. Takigawa, T. Yamasaki +4
Optical conductivity [] of CeRhIn and YbNiGa have been measured at external pressures to 10 GPa and at low temperatures to 6 K. Regarding CeRhIn, at ambient p…
Emergence of charge degrees of freedom under high pressure in an organic dimer-Mott insulator -(BEDT-TTF)ICl
K. Hashimoto, R. Kobayashi, H. Okamura +7
To elucidate the pressure evolution of the electronic structure in an antiferromagnetic dimer-Mott (DM) insulator -(BEDT-TTF)ICl, which exhibits superconductivi…
Pressure suppression of unconventional charge-density-wave state in PrRu4P12 studied by optical conductivity
H. Okamura, N. Ohta, A. Takigawa +12
Optical conductivity s(w) of PrRu4P12 has been studied under high pressure to 14 GPa, at low temperatures to 8 K, and at photon energies 12 meV-1.1 eV. The energy gap in s(w) at am…