A5080516440- Rare-earth and actinide compounds
- Topological Materials and Phenomena
- Iron-based superconductors research
- Advanced Condensed Matter Physics
- Magnetic and transport properties of perovskites and related materials
- High-pressure geophysics and materials
Osaka University
2023-2024
The putative spin-triplet superconductor ${\mathrm{UTe}}_{2}$ exhibits multiple superconducting phases under applied pressure [Braithwaite et al., Commun. Phys. 2, 147 (2019)]. clarification of pairing mechanisms and symmetries gap functions are essentially important for understanding the multiple-phase diagram. Since coexistence ferromagnetic antiferromagnetic spin fluctuations with Ising-like anisotropy is suggested from measurements magnetic susceptibilities neutron scattering...
The recent measurement of the de Haas-van Alphen effect in spin-triplet superconductor UTe2 [D. Aoki et al., J. Phys. Soc. Jpn. 91, 083704 (2022)] supports cylindrical electron and hole Fermi surfaces, which implies that is trivial as a 3D time-reversal-invariant topological superconductor. Inspired by this observation, we investigate possible realization crystalline protected symmetry UTe2. We examine Majorana surface states mirror two-fold rotational symmetries for all symmetry-allowed...
Identifying the superconducting gap symmetry and topological signatures in putative spin-triplet superconductor $\text{UTe}_2$ is an important issue. Especially, a smoking-gun detection scheme for Majorana surface states hallmarking superconductivity still lacking. In this study, we examine spin susceptibility of with particular focus on contribution states. We find that contribute significantly to susceptibility, give rise Ising-like anisotropy anomalous enhancement susceptibility....
Identifying the superconducting gap symmetry and topological signatures in putative spin-triplet superconductor ${\mathrm{UTe}}_{2}$ is an important issue. Especially, a smoking-gun detection scheme for Majorana surface states hallmarking superconductivity still lacking. In this study, we examine spin susceptibility of with particular focus on contribution states. We find that contribute significantly to susceptibility, give rise Ising-like anisotropy anomalous enhancement susceptibility....
The recent measurement of the de Haas-van Alphen effect in spin-triplet superconductor UTe2 [D. Aoki et al., J. Phys. Soc. Jpn. 91, 083704 (2022)] supports cylindrical electron and hole Fermi surfaces, which implies that is trivial as a 3D time-reversal-invariant topological superconductor. Inspired by this observation, we investigate possible realization crystalline protected symmetry UTe2. We examine Majorana surface states mirror two-fold rotational symmetries for all symmetry-allowed...
The putative spin-triplet superconductor UTe2 exhibits multiple superconducting phases under applied pressure [D. Braithwaite et al., Commun. Phys. 2, 147 (2019)]. clarification of pairing mechanisms and symmetries gap functions are essentially important for understanding the multiple-phase diagram. Since coexistence ferromagnetic antiferromagnetic spin fluctuations with Ising-like anisotropy is suggested from measurements magnetic susceptibilities neutron scattering measurements, it...