119 citations · 763 across the 29 of their papers we have counts for
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Nematic and time-reversal breaking superconductivities coexisting with quadrupole order in a system
Katsunori Kubo
We discuss superconductivity in a model on a cubic lattice for a non-Kramers system. In previous studies, it is revealed that -wave superconductivity with symmetry o…
Anisotropic Superconductivity Emerging from the Orbital Degrees of Freedom in a Non-Kramers Doublet System
Katsunori Kubo
We study superconductivity in a three-orbital model for ions with the crystalline electric field (CEF) ground state. An antiferromagnetic interaction between the …
Correlation Effects on Antiferromagnetism in Fe Pnictides
Katsunori Kubo, Peter Thalmeier
To investigate correlation effects on antiferromagnetic order in Fe pnictides, we apply a variational Monte Carlo method to a two-orbital model. We obtain a small ordered moment co…
Multiorbital Effects on Antiferromagnetism in Fe Pnictides
Katsunori Kubo, Peter Thalmeier
We apply a Hartree-Fock approximation to a two-orbital model proposed for Fe pnictide superconductors. It is found that the antiferromagnetic (AFM) order with the ordering vector Q…
Fulde-Ferrell-Larkin-Ovchinnikov State in the absence of a Magnetic Field
Katsunori Kubo
We propose that in a system with pocket Fermi surfaces, a pairing state with a finite total momentum q_tot like the Fulde-Ferrell-Larkin-Ovchinnikov state can be stabilized even wi…
Pairing symmetry in a two-orbital Hubbard model on a square lattice
Katsunori Kubo
We investigate superconductivity in a two-orbital Hubbard model on a square lattice by applying fluctuation exchange approximation. In the present model, the symmetry of the two or…
Orbital-Controlled Superconductivity in f-Electron Systems
Katsunori Kubo, Takashi Hotta
We propose a concept of superconductivity controlled by orbital degree of freedom taking CeMIn5 (M= Co, Rh, and Ir) as typical examples. A microscopic multiorbital model for CeMIn5…