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Giant anomalous Hall effect from spin-chirality scattering in a chiral magnet
Yukako Fujishiro, Naoya Kanazawa, Ryosuke Kurihara +10
The electrical Hall effect can be significantly enhanced through the interplay of the conduction electrons with magnetism, which is known as the anomalous Hall effect (AHE). Wherea…
Tunable electron-phonon interactions in long-period superlattices
Hiroaki Ishizuka, Ali Fahimniya, Francisco Guinea +1
The efficiency of optical emitters can be dramatically enhanced by reducing the effective mode volume (the Purcell effect). Here we predict an analogous enhancement for electron-ph…
Spin-current version of solar cells in non-centrosymmetric magnetic insulators
Masahiro Sato, Hiroaki Ishizuka
Photovoltaic effect, e.g., solar cells, converts light into DC electric current. This phenomenon takes place in various setups such as in noncentrosymmetric crystals and semiconduc…
Butterfly-shaped magnetoresistance in triangular-lattice antiferromagnet AgCrO
Hiroki Taniguchi, Mori Watanabe, Masashi Tokuda +8
Spintronic devices using antiferromagnets (AFMs) are promising candidates for future applications. Recently, many interesting physical properties have been reported with AFM-based…
Theory of shift current in Anderson insulator
Hiroaki Ishizuka, Naoto Nagaosa
Shift current is a photovoltaic current in bulk noncentrosymmetric insulator. Studies on shift current have so far focused on the extended Bloch waves, such as in semiconductors an…