1.7k citations · 9.6k across the 158 of their papers we have counts for
6 papers · 1 filter
Origin of diverse nematic orders in Fe-based superconductors: 45 rotated nematicity in AFeAs (A=Cs, Rb)
Seiichiro Onari, Hiroshi Kontani
The origin of diverse nematicity and their order parameters in Fe-based superconductors have been attracting increasing attention. Recently, a new type of nematic order has been di…
Fully gapped s-wave superconductivity enhanced by magnetic criticality in heavy fermion system
Rina Tazai, Hiroshi Kontani
In heavy fermion systems, higher-rank multipole operators are active thanks to the strong spin-orbit interaction (SOI), and the role of diverse multipole fluctuations on the pairin…
Competing Unconventional Charge-Density-Wave States in Cuprate Superconductors: Spin-Fluctuation-Driven Mechanism
Kouki Kawaguchi, Youichi Yamakawa, Masahisa Tsuchiizu +1
To understand the origin of unconventional charge-density-wave (CDW) states in cuprate superconductors, we establish the self-consistent CDW equation, and analyze the CDW instabili…
Edge-induced strongly correlated electronic states in two-dimensional Hubbard model: Enhancement of magnetic correlations and self-energy effects
Shun Matsubara, Youichi Yamakawa, Hiroshi Kontani
To understand nontrivial edge electronic states in strongly-correlated metals such as cuprate superconductors, we study the two-dimensional Hubbard models with open edge boundary.…
Pairing mechanism for nodal -wave superconductivity in BaFe(As,P): Analysis beyond Migdal-Eliashberg formalism
Hironori Nakaoka, Youichi Yamakawa, Hiroshi Kontani
The pairing mechanism and gap structure in Ba122 pnictides have been hotly discussed for long time as one of the central issues in Fe-based superconductors. Here, we attack this pr…
Self-energy driven resonance-like inelastic neutron spectrum in -wave state in Fe-based superconductors
Lisa Takeuchi, Youichi Yamakawa, Hiroshi Kontani
To elucidate the pairing states in Fe-based superconductors, we perform careful calculation of the dynamical spin susceptibility at very low temperatures ( me…