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Topological odd-parity superconductors
Masatoshi Sato
In this letter, we investigate topological phases of full-gapped odd-parity superconductors, which are distinguished by the bulk topological invariants and the topologically protec…
Effects of Ru Doping on the Transport Behavior and Superconducting Transition Temperature of NdFeAsO0.89F0.11
Sang Chul Lee, Erika Satomi, Yoshiaki Kobayashi +1
The transport behavior and superconducting transition temperature Tc of NdFe1-yRuyAsO0.89F0.11 have been studied for various y values. Because Ru impurities are isoelectronic to ho…
Structure of Neutron-Scattering Peak in both s++ wave and s+- wave states of an Iron pnictide Superconductor
Seiichiro Onari, Hiroshi Kontani, Masatoshi Sato
We study the neutron scattering spectrum in iron pnictides based on the random-phase approximation in the five-orbital model, for fully-gapped s-wave states with sign reversal (s+-…
Studies of Impurity-Doping Effects and NMR Measurement5s of La1111 and/or Nd 1111 Fe-Pnictide Superconductors
Masatoshi Sato, Yoshiaki Kobayashi, San Chul Lee +3
Measurements of the electrical resistivities, Hall coefficients, thermoelectric powers, electronic specific heat coefficients have been carried out for samples of LnFe1-yMyAsO1-xFx…
Zero modes, energy gap, and edge states of anisotropic honeycomb lattice in a magnetic field
Kenta Esaki, Masatoshi Sato, Mahito Kohmoto +1
We present systematic study of zero modes and gaps by introducing effects of anisotropy of hopping integrals for a tight-binding model on the honeycomb lattice in a magnetic field.…
Structural Transition of Li2RuO3 Induced by Molecular-Orbit Formation
Yoko Miura, Masatoshi Sato, Youichi Yamakawa +2
A pseudo honeycomb system Li2RuO3 exhibits a second-order-like transition at temperature T=Tc=540 K to a low-T nonmagnetic phase with a significant lattice distortion forming Ru-Ru…