3 papers
cond-mat.mtrl-sci2026
Raman Optical Activity Induced by Ferroaxial Order in NiTiO
Gakuto Kusuno, Takeshi Hayashida, Takayuki Nagai +4
Raman optical activity (ROA), the dependence of Raman intensity on the circular polarization of incident and scattered light, has traditionally been observed in chiral molecules an…
cond-mat.mtrl-sci2026
Electric-field-induced X-ray Nonreciprocal Dichroism in Hematite
Takeshi Hayashida, Koei Matsumoto, Keito Arakawa +5
Hematite (alpha-Fe2O3) is a prototypical room temperature antiferromagnet whose time-reversal-odd magnetic structure has recently attracted renewed attention. While such magnetic s…
cond-mat.str-el2025
Electric-field-induced magnetic toroidal moment and nonlinear magnetoelectric effect in antiferromagnetic olivines
Yasuyuki Kato, Takeshi Hayashida, Koei Matsumoto +2
Beyond conventional electric and magnetic monopoles, electric and magnetic toroidal monopoles, which are rank-0 multipoles distinguished by opposite parities under spatial inversio…