81 citations · 801 across the 42 of their papers we have counts for
42 papers
Time-reversal symmetry breaking phase and gapped surface states in d-wave nanoscale superconductors
Yuki Nagai, Yukihiro Ota, K. Tanaka
We solve the Bogoliubov-de Gennes equations self-consistently for d-wave superconductors with [110] surfaces. We find spontaneous breaking of time-reversal symmetry (TRS) caused by…
Emergence of -pairing ground-state in population-imbalanced attractive Fermi-gases filling orbitals on 1-D optical lattice
Keita Kobayashi, Yukihiro Ota, Masahiko Okumura +2
We explore the ground states in population-imbalanced attractive 1-D fermionic optical lattice filling orbitals over the lowest one by using the density-matrix-renormalizat…
Time-reversal symmetry breaking and gapped surface states due to spontaneous emergence of new order in -wave nanoislands
Yuki Nagai, Yukihiro Ota, K. Tanaka
We solve the Bogoliubov-de Gennes equations self-consistently for the -wave order parameter in nanoscale -wave systems with [110] surfaces and show that spontaneous time-reve…
Nuclear magnetic relaxation rates of unconventional superconductivity in doped topological insulators
Yuki Nagai, Yukihiro Ota
We study the temperature dependence of nuclear magnetic relaxation (NMR) rates to detect a sign of topological superconductivity in doped topological insulators, such as (Cu,…
A screened automated structural search with semiempirical methods
Yukihiro Ota, Sergi Ruiz-Barragan, Masahiko Machida +1
We developed an interface program between a program suite for an automated search of chemical reaction pathways, GRRM, and a program package of semiempirical methods, MOPAC. A two-…
Critical Temperature Enhancement of Topological Superconductors: A Dynamical Mean Field Study
Yuki Nagai, Shintaro Hoshino, Yukihiro Ota
We show that a critical temperature Tc for spin-singlet two-dimensional superconductivity is enhanced by a cooperation between the Zeeman magnetic field and the Rashba spin-orbit c…