Challenges in identifying chiral spin textures via the topological Hall effect
Chiral spin textures such as skyrmions are of interest to the field of spintronics for their
potential use in future computing devices. Hall effect measurements are a simple and …
potential use in future computing devices. Hall effect measurements are a simple and …
Meron, skyrmion, and vortex crystals in centrosymmetric tetragonal magnets
The recent experimental confirmation of a transformation between meron and skyrmion
topological spin textures in the chiral magnet Co 8 Zn 9 Mn 3 [S.-Z. Lin et al., Phys. Rev. B …
topological spin textures in the chiral magnet Co 8 Zn 9 Mn 3 [S.-Z. Lin et al., Phys. Rev. B …
Tetrahedral triple-Q magnetic ordering and large spontaneous Hall conductivity in the metallic triangular antiferromagnet Co1/3TaS2
The triangular lattice antiferromagnet (TLAF) has been the standard paradigm of frustrated
magnetism for several decades. The most common magnetic ordering in insulating TLAFs is …
magnetism for several decades. The most common magnetic ordering in insulating TLAFs is …
Systematic analysis method for nonlinear response tensors
R Oiwa, H Kusunose - Journal of the Physical Society of Japan, 2022 - journals.jps.jp
We propose a systematic analysis method for identifying essential parameters in various
linear and nonlinear response tensors without which they vanish. By using the Keldysh …
linear and nonlinear response tensors without which they vanish. By using the Keldysh …
Anomalous Hall effect in -type organic antiferromagnets
We theoretically propose a mechanism for the anomalous Hall effect (AHE) in an
antiferromagnetic (AFM) state of κ-type organic conductors. We incorporate the spin-orbit …
antiferromagnetic (AFM) state of κ-type organic conductors. We incorporate the spin-orbit …
Nonlinear nonreciprocal transport in antiferromagnets free from spin-orbit coupling
S Hayami, M Yatsushiro - Physical Review B, 2022 - APS
We theoretically propose a realization of nonlinear nonreciprocal transport in
antiferromagnets without relying on the relativistic spin-orbit coupling. Through symmetry …
antiferromagnets without relying on the relativistic spin-orbit coupling. Through symmetry …
Essential role of the anisotropic magnetic dipole in the anomalous Hall effect
S Hayami, H Kusunose - Physical Review B, 2021 - APS
We theoretically investigate the anomalous Hall effect (AHE) that requires neither a net
magnetization nor an external magnetic field in collinear antiferromagnets. We show that …
magnetization nor an external magnetic field in collinear antiferromagnets. We show that …
Ferrimagnetic spin waves in honeycomb and triangular layers of
A detailed analysis of the ferrimagnetic ground state of Mn 3 Si 2 Te 6 has been performed
using inelastic neutron scattering. Although the proposed valence of the nominal Mn 2+ ions …
using inelastic neutron scattering. Although the proposed valence of the nominal Mn 2+ ions …
Anomalous Hall effect in antiferromagnetic perovskites
We theoretically study the anomalous Hall effect (AHE) in perovskites with antiferromagnetic
(AFM) orderings. By studying the multiorbital Hubbard model for d electrons in perovskite …
(AFM) orderings. By studying the multiorbital Hubbard model for d electrons in perovskite …
Machine learning assisted derivation of minimal low-energy models for metallic magnets
We consider the problem of extracting a low-energy spin Hamiltonian from a triangular
Kondo Lattice Model (KLM). The non-analytic dependence of the effective spin-spin …
Kondo Lattice Model (KLM). The non-analytic dependence of the effective spin-spin …