518 citations · 2.1k across the 45 of their papers we have counts for
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Generation of dc, ac, and second-harmonic spin currents by electromagnetic fields in an inversion-asymmetric antiferromagnet
Tatsuhiko N. Ikeda
Manipulating spin currents in magnetic insulators is a key technology in spintronics. We theoretically study a simple inversion-asymmetric model of quantum antiferromagnets, where…
High-harmonic generation by electric polarization, spin current, and magnetization
Tatsuhiko N. Ikeda, Masahiro Sato
High-harmonic generation (HHG), a typical nonlinear optical effect, has been actively studied in electron systems such as semiconductors and superconductors. As a natural extension…
Origin of Stripe and Quasi-Stripe CDW Structures in Monolayer MX compounds: Multivalley Free Energy Landscape
Keiji Nakatsugawa, Satoshi Tanda, Tatsuhiko N. Ikeda
Ultrathin sheets of transition metal dichalcogenides (MX) with charge density waves (CDWs) is increasingly gaining interest as a promising candidate for graphene-like devices.…
Efficient Terahertz Harmonic Generation with Coherent Acceleration of Electrons in the Dirac Semimetal Cd3As2
Bing Cheng, Natsuki Kanda, Tatsuhiko N. Ikeda +7
We report strong terahertz (~10^12 Hz) high harmonic generation in thin films of Cd3As2, a three-dimensional Dirac semimetal at room temperature. The third harmonics is detectable…
Disorder Effects on the Origin of High-Order Harmonic Generation in Solids
Koki Chinzei, Tatsuhiko N. Ikeda
We consider noninteracting electrons coupled to laser fields, and study perturbatively the effects of the lattice potential involving disorder on the harmonic components of the ele…