Tuning the parity mixing of singlet-septet pairing in a half-Heusler superconductor

K Ishihara, T Takenaka, Y Miao, Y Mizukami… - Physical Review X, 2021 - APS
In superconductors, electrons with spin s= 1/2 form Cooper pairs whose spin structure is
usually singlet (S= 0) or triplet (S= 1). When the electronic structure near the Fermi level is …

High-throughput investigations of topological and nodal superconductors

F Tang, S Ono, X Wan, H Watanabe - Physical Review Letters, 2022 - APS
The theory of symmetry indicators has enabled database searches for topological materials
in normal conducting phases, which has led to several encyclopedic topological material …

Inducing chiral superconductivity on honeycomb lattice systems

AM Alsharari, SE Ulloa - Journal of Physics: Condensed Matter, 2022 - iopscience.iop.org
Superconductivity in graphene-based systems has recently attracted much attention, as
either intrinsic behavior or induced by proximity to a superconductor may lead to interesting …

Towards complete characterization of topological insulators and superconductors: A systematic construction of topological invariants based on Atiyah-Hirzebruch …

S Ono, K Shiozaki - arXiv preprint arXiv:2311.15814, 2023 - arxiv.org
The past decade has witnessed significant progress in topological materials investigation.
Symmetry-indicator theory and topological quantum chemistry provide an efficient scheme to …

Electronic multipoles and multiplet pairs induced by Pomeranchuk and Cooper instabilities of Bogoliubov Fermi surfaces

ST Tamura, S Iimura, S Hoshino - Physical Review B, 2020 - APS
It was recently pointed out that Fermi surfaces can remain even in superconductors under
symmetric spin-orbit interaction and broken time-reversal symmetry. Using the linear …

Intrinsic finite-energy Cooper pairing in superconductors

M Bahari, SB Zhang, B Trauzettel - Physical Review Research, 2022 - APS
We show that Cooper pairing can occur intrinsically away from the Fermi surface in j= 3/2
superconductors with strong spin-orbit coupling and equally curved bands in the normal …

Spin Susceptibility of a J = 3/2 Superconductor

D Kim, T Sato, S Kobayashi, Y Asano - Journal of the Physical …, 2023 - journals.jps.jp
We discuss the spin susceptibility of superconductors in which a Cooper pair consists of two
electrons having the angular momentum J= 3/2 due to strong spin–orbit interactions. The …

Odd-frequency pairs and anomalous proximity effect in nematic and chiral states of superconducting topological insulators

T Mizushima, S Tamura, K Yada, Y Tanaka - Physical Review B, 2023 - APS
We investigate emergent odd-frequency pairs and proximity effect in nematic and chiral
states of superconducting topological insulators (STIs), such as M x Bi 2 Se 3 (M= Cu, Sr …

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 …

Crystal symmetry protected gapless vortex line phases in superconducting Dirac semimetals

S Kobayashi, S Sumita, M Hirayama, A Furusaki - Physical Review B, 2023 - APS
Vortex lines in superconducting Dirac semimetals with s-wave pairing realize crystal
symmetry protected gapless vortex line phases in which gapless excitations propagate …