5 papers
Emergent induction in magnetic Weyl semimetals
Takahiro Anan, Takahiro Morimoto
We theoretically study emergent electromagnetic responses in Weyl semimetals. Focusing on magnetic Weyl semimetals, we develop a general theory of emergent induction driven by magn…
Emergent toroidal induction in a polar Weyl ferromagnet
Yuuri Suzuki, Yukako Fujishiro, Masataka Mogi +12
Spin-orbit coupling (SOC) underpins modern spintronics by enabling the electrical generation of spin torques. Its reciprocal counterpart, in which magnetization dynamics produce el…
Quantum-geometric shift of quasiequilibrium: Origin of nonreciprocal current driven by quantum-metric dipole
Sota Kitamura, Takahiro Anan, Takahiro Morimoto
We study nonlinear DC electric transport of quantum-metric origin by combining adiabatic perturbation theory with the nonequilibrium Green function approach. The adiabatic ansatz p…
Nonreciprocal current induced by dissipation in time-reversal symmetric systems
Takahiro Anan, Sota Kitamura, Takahiro Morimoto
We study nonreciprocal current response in noncentrosymmetric crystals under time-reversal symmetry. We reveal that the nonreciprocal current appears in a dissipative system throug…
Emergent inductors in non-helical magnets
Takahiro Anan, Takahiro Morimoto
The emergent inductor, which is a concept of an inductor employing quantum mechanics on helical magnets, has been studied actively from both theoretical and experimental aspects. I…