Fermi surface and light quasi particles　in hourglass nodal chain metal β-ReO2

Daigorou Hirai; Takahito Anbai; Takako Konoike; Shinya Uji; Yuya Hattori; Taichi Terashima; Hajime Ishikawa; Koichi Kindo; Naoyuki Katayama; Tamio Oguchi; Zenji Hiroi

doi:10.48505/nims.4874

論文 Fermi surface and light quasi particles　in hourglass nodal chain metal β-ReO2

Daigorou Hirai (Department of Applied Physics, Nagoya University) ; Takahito Anbai (Institute for Solid State Physics,, University of Tokyo) ; Takako Konoike (Research Center for Materials Nanoarchitectonics (MANA), NIMS) ; Shinya Uji (Research Center for Materials Nanoarchitectonics (MANA), NIMS) ; Yuya Hattori (Research Center for Materials Nanoarchitectonics (MANA), NIMS) ; Taichi Terashima (Research Center for Materials Nanoarchitectonics (MANA), NIMS) ; Hajime Ishikawa (Institute for Solid State Physics, University of Tokyo) ; Koichi Kindo (Institute for Solid State Physics, University of Tokyo) ; Naoyuki Katayama (Department of Applied Physics, Nagoya University,) ; Tamio Oguchi (Graduate School of Engineering Science, Osaka University) ; Zenji Hiroi (Institute for Solid State Physics, University of Tokyo)

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コレクション

引用

Daigorou Hirai, Takahito Anbai, Takako Konoike, Shinya Uji, Yuya Hattori, Taichi Terashima, Hajime Ishikawa, Koichi Kindo, Naoyuki Katayama, Tamio Oguchi, Zenji Hiroi. Fermi surface and light quasi particles　in hourglass nodal chain metal β-ReO2. JOURNAL OF PHYSICS-CONDENSED MATTER. 2023, 35 (40), 405503. https://doi.org/10.48505/nims.4874

(BibTeX)

代替タイトル: ノード鎖金属β-ReO2のフェルミ面と軽い準粒子

説明:

(abstract)

Quantum oscillations (QOs) in magnetic torque and electrical resistivity were measured to
investigate the electronic structure of β-ReO2, a candidate hourglass nodal chain (NC) metal
(Dirac loop chain metal). All the de Haas–van Alphen oscillation branches measured at 30 mK
in magnetic fields of up to 17.5 T were consistent with first-principles calculations predicting
four Fermi surfaces (FSs). The small-electron FS of the four FSs exhibited a very small
cyclotron mass, 0.059 times that of the free electrons, which is likely related to the linear
dispersion of the energy band. The consistency between the QO results and band calculations
indicates the presence of the hourglass NC predicted for β-ReO2 in the vicinity of the Fermi
energy.

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