199 citations · 1.7k across the 61 of their papers we have counts for
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Real space Berry curvature of itinerant electron systems with spin-orbit interaction
Shang-Shun Zhang, Hiroaki Ishizuka, Hao Zhang +2
By considering an extended double-exchange model with spin-orbit coupling (SOC), we derive a general form of the Berry phase that electrons pick up when moving around a closed…
Anomalous electrical magnetochiral effect by chiral spin fluctuation
Hiroaki Ishizuka, Naoto Nagaosa
The non-collinear spin configurations cause many nontrivial phenomena related to the Berry phase. They are described by the vector spin chirality …
Theory for shift current of bosons: Photogalvanic spin current in ferrimagnetic and antiferromagnetic insulators
Hiroaki Ishizuka, Masahiro Sato
We theoretically study the optical generation of dc spin current (i.e., a spin-current solar cell) in ordered antiferromagnetic and ferrimagnetic insulators, motivated by a recent…
Theory of giant skew scattering by spin cluster
Hiroaki Ishizuka, Naoto Nagaosa
Skew scattering of electrons induced by a spin cluster is studied theoretically focusing on metals with localized magnetic moments. The scattering probability is calculated by a no…
Spin-current diode with a monoaxial chiral magnet
Shun Okumura, Hiroaki Ishizuka, Yasuyuki Kato +2
Monoaxial chiral magnets exhibit a chiral conical magnetic state in a magnetic field parallel to the chiral axis. The conical spins carry the potential for nonreciprocal transport…
Magnetically Switchable Light-Matter Interaction in the Two-Dimensional Magnet CrI3
Yang Zhang, Tobias Holder, Hiroaki Ishizuka +4
Coupling different physical properties is a fascinating subject of physics. Already well-known are the multiferroics which show properties of ferroelectrics and magnets. But ferroe…
Berry phase of phonons and thermal Hall effect in nonmagnetic insulators
Takuma Saito, Kou Misaki, Hiroaki Ishizuka +1
A mechanism for phonon Hall effect (PHE) in non-magnetic insulators under an external magnetic field is theoretically studied. PHE is known in (para)magnetic compounds, where the m…
Scaling Theory of Quantum Ratchet
Keita Hamamoto, Takamori Park, Hiroaki Ishizuka +1
The asymmetric responses of the system between the external force of right and left directions are called "nonreciprocal". There are many examples of nonreciprocal responses such a…