We theoretically investigate a nonlinear spin Hall effect in PT-symmetric antiferromagnetic
metals, which serve as an efficient spin current generator. We elucidate that an emergent …

We theoretically investigate an intrinsic nonlinear anomalous Hall effect (INAHE) in space-
time (PT) symmetric antiferromagnetic metals. The INAHE is characterized by an asymmetric …

The nature of an electric ferroaxial moment characterizing a time-reversal-even axial-vector
quantity is theoretically investigated under magnetic orderings. We clarify that a vortex spin …

Corundum and related compounds possess interesting properties for functional
applications, such as magnetization reversal or linear magneto electricity, depending on …

Polar magnet Ni 3 TeO 6 has been recently attracting considerable interest due to its
nonhysteretic magnetoelectricity associated with the collinear antiferromagnetic (AFM) …

Through an analysis of single-crystal neutron diffraction data, we present the magnetic
structure and magnetoelectric properties of Co 4 Nb 2 O 9 under various magnetic fields. In …

We report observation of ultrarobust linear magnetoelectric memory and significant training
effect in a honeycomb antiferromagnet Co 4 Nb 2 O 9, which is controllable by magnetic and …

The microscopic conditions for the emergence of nonreciprocal magnon excitations in
noncentrosymmetric magnets are theoretically investigated. We show that asymmetric …

As a new magnetoelectric material, honeycomb-based antiferromagnet Fe 4 Nb 2 O 9 has
attracted a great deal of attention due to its prominent magnetoelectric (ME) coupling and …

Ni4Nb2O9 and Co4Nb2O9 have two different structures derived from corundum which show
different magnetic and electrical properties. The ferrimagnetism (FIM) associated with …