3 papers
cond-mat.str-el2025
Topological phase transitions by time-dependent electromagnetic fields in frustrated magnets: Role of dynamical and static magnetic fields
Tatsuya Shirato, Ryota Yambe, Satoru Hayami
We theoretically investigate the effects of time-dependent electromagnetic fields on frustrated magnets with the spatial inversion symmetry. Two types of external-field setups are…
cond-mat.str-el2025
Symmetry Rules on Multipole Interactions under Crystallographic Point Groups and Application to Multiple- Multipole States
Ryota Yambe, Satoru Hayami
Multipole degrees of freedom describe the mutual interplay among the charge, spin, and orbital degrees of freedom in electrons, which provides a microscopic understanding of unconv…
cond-mat.str-el2025
Bimeron Crystals by a Linearly Polarized AC Electric Field in Frustrated Magnets
Tatsuya Shirato, Ryota Yambe, Satoru Hayami
We theoretically propose a method to generate topological spin textures by irradiating a classical spin system with a linearly polarized AC electric field. To this end, we investig…