523 citations · 1.2k across the 14 of their papers we have counts for
14 papers
Spin-orbit fluctuations in frustrated heavy-fermion metal LiVO
K. Tomiyasu, K. Iwasa, H. Ueda +6
Spin fluctuations were studied over a wide momentum () and energy () space in the frustrated -electron heavy-fermion metal LiVO by time-of-flight inelastic n…
Superconductivity in an electron band just above the Fermi level: possible route to BCS-BEC superconductivity
Kozo Okazaki, Yoshiaki Ito, Yuichi Ota +10
Conventional superconductivity follows Bardeen-Cooper-Schrieffer(BCS) theory of electrons-pairing in momentum-space, while superfluidity is the Bose-Einstein condensation(BEC) of a…
Orbital reformation with vanadium trimerization in triangular lattice LiVO revealed by V NMR
Takaaki Jin-no, Yasuhiro Shimizu, Masayuki Itoh +2
LiVO is a model system of the valence bond solid (VBS) in triangular lattice. The origin of the VBS formation has remained controversial. We investigate the microscopic…
An orbital-selective spin liquid in a frustrated heavy fermion spinel LiVO
Yasuhiro Shimizu, Hikaru Takeda, Moe Tanaka +3
The pronounced enhancement of the effective mass is the primary phenomenon associated with strongly correlated electrons. In the presence of local moments, the large effective mass…
Evidence for a cos(4φ) Modulation of the Superconducting Energy Gap of Optimally Doped FeTe_{0.6}Se_{0.4} Single Crystals Using Laser Angle-Resolved Photoemission Spectroscopy
K. Okazaki, Y. Ito, Y. Ota +10
We study the superconducting(SC)-gap anisotropy of the Γ-centered hole Fermi surface in optimally doped FeTe_{0.6}Se_{0.4} (T_c = 14.5 K), using laser-excited angle-resolved photoe…
Phonon, Two-Magnon and Electronic Raman Scattering of Fe1+yTe1-xSex
K. Okazaki, S. Sugai, S. Niitaka +1
We have measured Raman scattering spectra of single-crystalline FeTe0.6Se0.4 (T_c ~ 14.5 K) and its parent compound Fe1.074Te at various temperatures. In the parent compound Fe1.07…