Insulator-Metal Transition and Topological Superconductivity in from a First-Principles Calculation

J Ishizuka, S Sumita, A Daido, Y Yanase - Physical Review Letters, 2019 - APS
We theoretically study superconductivity in UTe 2, which is a recently discovered strong
candidate for an odd-parity spin-triplet superconductor. Theoretical studies for this …

-enriched symmetry indicators for topological superconductors in the 1651 magnetic space groups

S Ono, HC Po, K Shiozaki - Physical Review Research, 2021 - APS
While the symmetry-based diagnosis of topological insulators and semimetals has enabled
large-scale discovery of topological materials candidates, the extension of these …

Symmetry-based approach to superconducting nodes: Unification of compatibility conditions and gapless point classifications

S Ono, K Shiozaki - Physical Review X, 2022 - APS
Determination of the symmetry property of superconducting gaps has been a central issue in
studies to understand the mechanisms of unconventional superconductivity. Although it is …

Crystalline nodal topological superconductivity and Bogolyubov Fermi surfaces in monolayer

D Shaffer, J Kang, FJ Burnell, RM Fernandes - Physical Review B, 2020 - APS
We present a microscopic calculation of the phase diagram of the Ising superconductor
NbSe 2 in the presence of both in-plane magnetic field and Rashba spin-orbit coupling …

Classification of topological crystalline superconducting nodes on high-symmetry lines: Point nodes, line nodes, and Bogoliubov Fermi surfaces

S Sumita, T Nomoto, K Shiozaki, Y Yanase - Physical Review B, 2019 - APS
Recent development in exact classification of a superconducting gap has elucidated various
unconventional gap structures, which have not been predicted by the classification of order …

Superconductivity induced by fluctuations of momentum-based multipoles

S Sumita, Y Yanase - Physical Review Research, 2020 - APS
Recent studies of unconventional superconductivity have focused on charge or spin
fluctuation, instead of electron-phonon coupling, as an origin of attractive interaction …

Odd-parity multipole fluctuation and unconventional superconductivity in locally noncentrosymmetric crystal

J Ishizuka, Y Yanase - Physical Review B, 2018 - APS
A microscopic calculation and symmetry argument reveal superconductivity in the vicinity of
parity-violating magnetic order. In a crystal structure lacking local space inversion symmetry …

Competitive spin-flipped normal reflection and equal-spin Andreev reflection in heterojunctions of nodal-line superconductors

X Wang, H Geng, W Luo, W Chen - Physical Review B, 2023 - APS
The superconducting phase of topological semimetals has become a promising route for the
implementation of topological superconductivity and non-Abelian Majorana fermions. Here …

Efficient method to compute indices with glide symmetry and applications to the Möbius materials CeNiSn and UCoGe

T Yoshida, A Daido, N Kawakami, Y Yanase - Physical Review B, 2019 - APS
We propose an efficient method to numerically evaluate Z 4 indices of Möbius and/or
hourglass topological phases with glide symmetry. Our method directly provides Z 4 indices …

Majorana multipole response: General theory and application to wallpaper groups

S Kobayashi, Y Yamazaki, A Yamakage, M Sato - Physical Review B, 2021 - APS
Whereas identification of Cooper-pair symmetry is the first and crucial step in the
investigation of unconventional superconductors, only a few have been established so far …