180 citations · 757 across the 20 of their papers we have counts for
7 papers · 1 filter
Coexistence of near-EF flat band and van Hove singularity in a two-phase superconductor
Xuezhi Chen, Le Wang, Jun Ishizuka +9
In quantum many-body systems, particularly, the ones with large near-EF density states, like flat bands or van Hove singularity (VHS), electron correlations often give rise to rich…
de Haas-van Alphen Oscillations for the Field Along c-axis in UTe2
Dai Aoki, Ilya Sheikin, Alix McCollam +5
We performed de Haas-van Alphen (dHvA) experiments in the spin-triplet superconductor UTe2 for magnetic field along the c-axis above 15T. Three fundamental dHvA frequencies, named…
First Observation of de Haas-van Alphen Effect and Fermi Surfaces in Unconventional Superconductor UTe2
Dai Aoki, Hironori Sakai, Petr Opletal +11
We report the first observation of the de Haas-van Alphen (dHvA) effect in the novel spin-triplet superconductor UTe2 using high quality single crystals with the high residual resi…
Magnetic Properties under Pressure in Novel Spin-Triplet Superconductor UTe2
Dexin Li, Ai Nakamura, Fuminori Honda +8
We report the magnetic susceptibility and the magnetization under pressures up to 1.7GPa above the critical pressure, Pc ~ 1.5GPa, for H // a, b, c-axes in the novel spin triplet s…
Thermodynamic electric quadrupole moments of nematic phases from first-principles calculation
Taisei Kitamura, Jun Ishizuka, Akito Daido +1
The electronic nematic phase emerging with spontaneous rotation symmetry breaking is a central issue of modern condensed matter physics. In particular, various nematic phases in ir…
Hole- State Induced by Coexisting Ferro- and Aniferromagnetic and Aniferro-orbital Fluctuations in the Iron Pnictides
Jun Ishizuka, Takemi Yamada, Yuki Yanagi +1
The multi-orbital Hubbard model is investigated in order to clarify the electron correlation effects and the superconductivity in the iron-based superconductor. The renormalization…
Metal-insulator transition and superconductivity in the two-orbital Hubbard-Holstein model for iron-based superconductors
Takemi Yamada, Jun Ishizuka, Yoshiaki Ōno
We investigate a two-orbital model for iron-based superconductors to elucidate the effect of interplay between electron correlation and Jahn-Teller electron-phonon coupling by usin…