97 citations · 1.2k across the 69 of their papers we have counts for
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H-wave -- A Python package for the Hartree-Fock approximation and the random phase approximation
Tatsumi Aoyama, Kazuyoshi Yoshimi, Kota Ido +5
H-wave is an open-source software package for performing the Hartree--Fock approximation (HFA) and random phase approximation (RPA) for a wide range of Hamiltonians of interacting…
Minimal alternating current injection into carbon nanotubes
Kota Fukuzawa, Takeo Kato, Thibaut Jonckheere +2
We study theoretically the effect of electronic interactions in 1d systems on electron injection using periodic Lorentzian pulses, known as Levitons. We consider specifically a sys…
Observation of Terahertz Spin Hall Conductivity Spectrum in GaAs with Optical Spin Injection
Tomohiro Fujimoto, Takayuki Kurihara, Yuta Murotani +7
We report the first observation of the spin Hall conductivity spectrum in GaAs at room temperature. Our terahertz polarimetry with a precision of several rads resolves the Farad…
Twisted bilayer graphene reveals its flat bands under spin pumping
Sonia Haddad, Takeo Kato, Jihang Zhu +1
The salient property of the electronic band structure of twisted bilayer graphene (TBG), at the so-called magic angle (MA), is the emergence of flat bands around the charge neutral…
Spin Pumping into Carbon Nanotubes
Kota Fukuzawa, Takeo Kato, Mamoru Matsuo +3
We theoretically study spin pumping from a ferromagnetic insulator (FI) into a carbon nanotube (CNT). By employing the bosonization method, we formulate the Gilbert damping induced…