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Skyrmion crystal and spiral phases in centrosymmetric bilayer magnets with staggered Dzyaloshinskii-Moriya interaction
Satoru Hayami
We theoretically study a stabilization mechanism of the skyrmion crystal in centrosymmetric magnets with a bilayer structure. We show that the interplay between a layer-dependent s…
Essential model parameters for nonreciprocal magnons in multisublattice systems
Satoru Hayami, Takuya Matsumoto
We theoretically investigate the microscopic conditions for emergent nonreciprocal magnons toward unified understanding on the basis of a microscopic model analysis. We show that t…
Antisymmetric Thermopolarization by Electric Toroidicity
Joji Nasu, Satoru Hayami
We investigate electric polarizations emergent perpendicular to an applied thermal gradient in insulating systems. The thermally-induced electric polarization, known as thermopolar…
Temperature-driven transition from skyrmion to bubble crystals in centrosymmetric itinerant magnets
Satoru Hayami
Interplay between itinerant electrons and localized spins in itinerant magnets gives rise to a variety of noncoplanar multiple- spin textures, such as the skyrmion, hedgehog, me…
Electric Ferro-Axial Moment as Nanometric Rotator and Source of Longitudinal Spin Current
Satoru Hayami, Rikuto Oiwa, Hiroaki Kusunose
An electric ferro-axial moment, which is characterized by a nonzero expectation value of a time-reversal-even axial vector, exhibits distinct spatial-inversion and time-reversal pr…
Analysis of model parameter dependences on the second-order nonlinear conductivity in -symmetric collinear antiferromagnetic metals with magnetic toroidal moment on zigzag chains
Megumi Yatsushiro, Rikuto Oiwa, Hiroaki Kusunose +1
A magnetic toroidal moment is a fundamental electronic degree of freedom in the absence of both spatial inversion and time-reversal symmetries and gives rise to novel multiferroic…