47 citations · 68 across the 2 of their papers we have counts for
6 papers
Photocurrent response in parity-time symmetric current-ordered states
Hikaru Watanabe, Youichi Yanase
There is growing interest in the photo-induced generation of rectified current, namely photocurrent phenomenon. While the response was attributed to noncentrosymmetric structures o…
Nonlinear electric transport in odd-parity magnetic multipole systems: Application to Mn-based compounds
Hikaru Watanabe, Youichi Yanase
Violation of parity symmetry gives rise to various physical phenomena such as nonlinear transport and cross-correlated responses. In particular, the nonlinear conductivity has been…
Chiral photocurrent in parity-violating magnet and enhanced response in topological antiferromagnet
Hikaru Watanabe, Youichi Yanase
Rectified electric current induced by irradiating light, so-called photocurrent, is an established phenomenon in optoelectronic physics. In this paper, we present a comprehensive c…
Symmetry analysis of current-induced switching of antiferromagnets
Hikaru Watanabe, Youichi Yanase
Antiferromagnets are robust to external electric and magnetic fields, and hence are seemingly uncontrollable. Recent studies, however, realized the electrical manipulations of anti…
Group-theoretical classification of multipole order: emergent responses and candidate materials
Hikaru Watanabe, Youichi Yanase
The multipole moment is an established concept of electrons in solids. Entanglement of spin, orbital, and sublattice degrees of freedom is described by the multipole moment, and sp…
Theory of orbital magnetic quadrupole moment and magnetoelectric susceptibility
Atsuo Shitade, Hikaru Watanabe, Youichi Yanase
We derive a quantum-mechanical formula of the orbital magnetic quadrupole moment (MQM) in periodic systems by using the gauge-covariant gradient expansion. This formula is valid fo…