148 citations · 455 across the 6 of their papers we have counts for
6 papers
Revisit of the Orbital-Fluctuation-Mediated Superconductivity in LiFeAs: Nontrivial Spin-Orbit Interaction Effects on the Bandstructure and Superconducting Gap Function
Tetsuro Saito, Youichi Yamakawa, Seiichiro Onari +1
Precise gap structure in LiFeAs (Tc = 18 K) given by ARPES studies offers us significant information to understand the pairing mechanism in iron-based superconductors. The most rem…
Nodal gap structure in Fe-based superconductors due to the competition between orbital and spin fluctuations
Tetsuro Saito, Seiichiro Onari, Hiroshi Kontani
To understand the origin of the nodal gap structure realized in BaFe(As,P), we study the three-dimensional gap structure based on the three-dimensional ten-orbital Hubbard…
Orbital fluctuation theory in iron-based superconductors: s-wave superconductivity, structure transition, and impurity-induced nematic order
H. Kontani, Y. Inoue, T. Saito +2
The main features in iron-based superconductors would be (i) the orthorhombic transition accompanied by remarkable softening of shear modulus, (ii) high-Tc superconductivity close…
Origin of Orthorhombic Transition, Magnetic Transition, and Shear Modulus Softening in Iron Pnictide Superconductors: Analysis based on the Orbital Fluctuation Theory
Hiroshi Kontani, Tetsuro Saito, Seiichiro Onari
The main features in iron-pnictide superconductors are summarized as (i) the orthorhombic transition accompanied by remarkable softening of shear modulus, (ii) high-Tc superconduct…
Emergence of Fully-Gapped -wave and Nodal d-wave States Mediated by Orbital- and Spin-Fluctuations in Ten-Orbital Model for KFeSe
Tetsuro Saito, Seiichiro Onari, Hiroshi Kontani
We study the superconducting state in newly discovered high-Tc superconductor KFeSe based on the ten-orbital Hubbard-Holstein model without hole-pockets. When the Coulo…
Orbital Fluctuation Theory in Iron Pnictides: Effects of As-Fe-As Bond Angle, Isotope Substitution, and -Orbital Pocket on the Superconductivity
Tetsuro Saito, Seiichiro Onari, Hiroshi Kontani
We study the pairing mechanism in iron pnictide superconductors based on the five-orbital Hubbard-Holstein model. Due to Fe-ion oscillations, the s-wave superconducting (SC) state…