Tokushima University

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19942026

most citedSearch for Majorana Neutrinos near the Inverted Mass Hierarchy Region with KamLAND-Zen

980 citations

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29 papers · 1 filter

cond-mat.str-el2022★ 11 cited

Pressure suppression of the excitonic insulator state in Ta2NiSe5 observed by optical conductivity

H. Okamura, T. Mizokawa, K. Miki +9

The layered chalcogenide Ta2NiSe5 has recently attracted much interest as a strong candidate for the long sought excitonic insulator (EI). Since the physical properties of an EI ar…

cond-mat.str-el2021★ 28 cited

Hybridization-gap Formation and Superconductivity in the Pressure-induced Semimetallic Phase of the Excitonic Insulator Ta $_{2}$ NiSe $_{5}$

Kazuyuki Matsubayashi, Hidekazu Okamura, Takashi Mizokawa +19

The excitonic insulator Ta $_{2}$ NiSe $_{5}$ experiences a first-order structural transition under pressure from rippled to flat layer-structure at Ps = 3 GPa, which drives the system fr…

cond-mat.str-el2021★ 3 cited

Robust hybridization gap in a Kondo Insulator YbB $_{12}$ probed by femtosecond optical spectroscopy

A. R. Pokharel, S. Y. Agustsson, V. V. Kabanov +4

In heavy fermions the relaxation dynamics of photoexcited carriers has been found to be governed by the low energy indirect gap, E $_{g}$ , resulting from hybridization between local…

cond-mat.str-el2019★ 2 cited

Optical Conductivity Study of $f$ Electron States in YbCu $_{2}$ Ge $_{2}$ at High Pressures to 20 GPa

H. Okamura, M. Nagata, A. Tsubouchi +3

Optical conductivity [ $σ (ω)$ ] of YbCu $_{2}$ Ge $_{2}$ has been measured at external pressures ( $P$ ) to 20 GPa, to study the $P$ evolution of $f$ electron hybridized states. At $P$ =0, $σ(…

cond-mat.str-el2019★ 7 cited

Contrasting pressure evolutions of $f$ electron hybridized states in CeRhIn $_{5}$ and YbNi $_{3}$ Ga $_{9}$ : an optical conductivity study

H. Okamura, A. Takigawa, T. Yamasaki +4

Optical conductivity [ $σ (ω)$ ] of CeRhIn $_{5}$ and YbNi $_{3}$ Ga $_{9}$ have been measured at external pressures to 10 GPa and at low temperatures to 6 K. Regarding CeRhIn $_{5}$ , at ambient p…

cond-mat.str-el2012★ 11 cited

51V-NMR study of antiferromagnetic state and spin dynamics in the quasi-one-dimensional BaCo2V2O8

Yukiichi Ideta, Yu Kawasaki, Yutaka Kishimoto +5

We report on our 51V-NMR study of static and dynamical magnetic properties in the quasi-one-dimensional antiferromagnet BaCo2V2O8. Although the NMR spectrum shows well-defined anti…

Pressure suppression of the excitonic insulator state in Ta2NiSe5 observed by optical conductivity

Hybridization-gap Formation and Superconductivity in the Pressure-induced Semimetallic Phase of the Excitonic Insulator Ta2​NiSe5​

Robust hybridization gap in a Kondo Insulator YbB12​ probed by femtosecond optical spectroscopy

Optical Conductivity Study of f Electron States in YbCu2​Ge2​ at High Pressures to 20 GPa

Contrasting pressure evolutions of f electron hybridized states in CeRhIn5​ and YbNi3​Ga9​: an optical conductivity study

51V-NMR study of antiferromagnetic state and spin dynamics in the quasi-one-dimensional BaCo2V2O8

Hybridization-gap Formation and Superconductivity in the Pressure-induced Semimetallic Phase of the Excitonic Insulator Ta $_{2}$ NiSe $_{5}$

Robust hybridization gap in a Kondo Insulator YbB $_{12}$ probed by femtosecond optical spectroscopy

Optical Conductivity Study of $f$ Electron States in YbCu $_{2}$ Ge $_{2}$ at High Pressures to 20 GPa

Contrasting pressure evolutions of $f$ electron hybridized states in CeRhIn $_{5}$ and YbNi $_{3}$ Ga $_{9}$ : an optical conductivity study