1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The Graduate University for Advanced Studies, SOKENDAIJP143 papers
- National Institutes of Natural SciencesJP76 papers
- The University of TokyoJP75 papers
- The University of OsakaJP59 papers
- Kyoto UniversityJP52 papers
- Tohoku UniversityJP46 papers
- Japan Science and Technology AgencyJP32 papers
- Nagoya UniversityJP30 papers
- Hiroshima UniversityJP27 papers
- High Energy Accelerator Research OrganizationJP26 papers
- RIKENJP26 papers
- Tokyo Institute of TechnologyJP26 papers
60 papers · 1 filter
Direct observation of a spin-polarized surface Dirac gap in the antiferromagnetic topological insulator NdBi
Yuto Fukushima, Hiroyuki S. Suzuki, Masayuki Ochi +15
A gapped Dirac cone in antiferromagnetic topological insulators (AFM-TIs) is essential for realizing the quantized anomalous Hall effect, yet its intrinsic magnitude remains contro…
Direct observation of the electronic structure of even-layer puckered SnTe monolayer films on graphene
Satoru Ichinokura, Shunsuke Tsuda, Kiyohisa Tanaka +1
We report a direct observation of the electronic structure of monolayer SnTe on graphene by angle-resolved photoemission spectroscopy. By combining low-energy electron diffraction,…
Chiral phonons in sixfold chiral CrSi: Raman spectroscopy and first-principles calculations
Gakuto Kusuno, Shingo Kisanuki, Yusuke Kousaka +2
Chiral phonons have been identified in several chiral crystals, primarily in those with trigonal symmetry and threefold screw axes. In this study, chiral phonons in CrSi, a chi…
Comprehensive Molecular-level Understanding of MgO Hydration through Computational Chemistry
Taichi Inagaki, Miho Hatanaka
The hydration of magnesium oxide (MgO) to magnesium hydroxide (Mg(OH)) is a fundamental solid-surface chemical reaction with significant implications for materials science. Yet…
Determining the density of in-gap states in organic semiconductors: A pitfall of photoelectron yield spectroscopy
Ryotaro Nakazawa, Masaya Kitaoka, Ryota Kaimori +4
Accurate determination of low-density electronic states in the bandgap (in-gap states) is crucial for optimizing the performance of organic optoelectronic devices. Derivative photo…
Raman Optical Activity Induced by Ferroaxial Order in NiTiO
Gakuto Kusuno, Takeshi Hayashida, Takayuki Nagai +4
Raman optical activity (ROA), the dependence of Raman intensity on the circular polarization of incident and scattered light, has traditionally been observed in chiral molecules an…
Electron-Chiral Phonon Coupling, Crystal Angular Momentum, and Phonon Chirality
Tomomi Tateishi, Akihito Kato, Jun-ichiro Kishine
We explicitly derive the wavefunctions of chiral phonons propagating along the helical axis in chiral crystals and clarify the characteristics of electron-phonon interactions in ch…
Magnetic resonance frequency of two-sublattice ferrimagnet with magnetic compensation temperature
Kouki Mikuni, Toshiki Hiraoka, Takumi Kuramoto +5
Ferrimagnetic materials with a compensation temperature have recently attracted interest because of their unique combination of ferromagnetic and antiferromagnetic properties. Howe…
Emergence of chirality by multipole interconversion
Hiroaki Kusunose, Jun-ichiro Kishine, Hiroshi M. Yamamoto
A clear understanding of chirality in spin-active electronic states is discussed in order to address confusions about chiral effects recently discovered in materials science. Elect…
Quantification of chirality based on electric toroidal monopole
Akane Inda, Rikuto Oiwa, Satoru Hayami +2
Chirality ubiquitously appears in nature, however, its quantification remains obscure owing to the lack of microscopic description at the quantum-mechanical level. We propose a way…
Chirality-Induced Selectivity of Phonon Angular Momenta in Chiral Quartz Crystals
Kazuki Ohe, Hiroaki Shishido, Masaki Kato +3
A generation, propagation, and transfer of phonon angular momenta are examined on thermal transport in chiral insulative and diamagnetic crystals of -quartz. We found that therm…
Sublattice-selective inverse Faraday effect in ferrimagnetic rare-earth iron garnet
Toshiki Hiraoka, Ryo Kainuma, Keita Matsumoto +2
We performed time-resolved pump--probe measurements using rare-earth iron garnet \ce{Gd3/2Yb1/2BiFe5O12} as a two-sublattice ferrimagnet. We measured the initial phases of the magn…
Spin polarization gate device based on the chirality-induced spin selectivity and robust nonlocal spin polarization
Hiroaki Shishido, Yuta Hosaka, Kenta Monden +4
Nonlocal spin polarization phenomena are thoroughly investigated in the devices made of chiral metallic single crystals of CrNbS and NbSi as well as of polycrystalline…
Note on Angular Momentum of Phonons in Chiral Crystals
Akihito Kato, Jun-ichiro Kishine
Phonon angular momentum in chiral materials has been widely studied in spintronics and condensed matter physics. In chiral crystals, this is not the conserved quantity in contrast…
Roughness-induced magnetic decoupling at organic-inorganic interface
Hiroki Ono, Yoshitaka Umeda, Kaito Yoshida +8
We have investigated structural, electronic and magnetic properties of HPc on FeN/Fe using low-energy electron diffraction and soft x-ray absorption spectroscopy/x-ray magn…
High-performance descriptor for magnetic materials: Accurate discrimination of magnetic structure
Michi-To Suzuki, Takuya Nomoto, Eiaki V. Morooka +2
The magnetic structure is crucial in determining the physical properties inherent in magnetic compounds. We present an adequate descriptor for magnetic structure with proper magnet…
Observation of plaid-like spin splitting in a noncoplanar antiferromagnet
Yu-Peng Zhu, Xiaobing Chen, Xiang-Rui Liu +27
Spatial, momentum and energy separation of electronic spins in condensed matter systems guides the development of novel devices where spin-polarized current is generated and manipu…
Sub-millimeter propagation of antiferromagnetic magnons via magnon-photon coupling
Ryo Kainuma, Keita Matsumoto, Toshimitsu Ito +1
For the realization of magnon-based current-free technologies, referred to as magnonics, all-optical control of magnons is an important technique for both fundamental research and…
Photo-induced nonlinear band shift and valence transition in SmS
Yitong Chen, Takuto Nakamura, Hiroshi Watanabe +12
The photo-induced band structure variation of a rare-earth-based semiconductor, samarium monosulfide (SmS), was investigated using high-harmonic-generation laser-based time-resolve…
Semiconducting Electronic Structure of the Ferromagnetic Spinel Revealed by Soft-X-Ray Angle-Resolved Photoemission Spectroscopy
Hiroaki Tanaka, Andrei V. Telegin, Yurii P. Sukhorukov +12
We study the electronic structure of the ferromagnetic spinel by soft-x-ray angle-resolved photoemission spectroscopy (SX-ARPES) and first-p…
On the definition of chirality and enantioselective fields
Jun-ichiro Kishine, Hiroaki Kusunose, Hiroshi M. Yamamoto
In solid state physics, any symmetry breaking is known to be associated with emergence of an order parameter. However, the order parameter for molecular and crystal chirality, whic…
Large anomalous Hall effect induced by weak ferromagnetism in the noncentrosymmetric antiferromagnet
Hiroaki Tanaka, Shota Okazaki, Kenta Kuroda +13
We study the mechanism of the exceptionally large anomalous Hall effect (AHE) in the noncentrosymmetric antiferromagnet by angle-resolved pho…
Fluctuated spin-orbital texture of Rashba-split surface states in real and reciprocal space
Takuto Nakamura, Yoshiyuki Ohtsubo, Ayumi Harasawa +4
Spin-orbit interaction (SOI) in low-dimensional systems, namely Rashba systems and the edge states of topological materials, is extensively studied in this decade as a promising so…
Dark discrete breather modes in monoaxial chiral helimagnet with easy-plane anisotropy
I. G. Bostrem, E. G. Ekomasov, J. Kishine +2
Nonlinearity and discreteness are two pivotal factors for an emergence of discrete breather excitations in various media. We argue that these requirements are met in the forced fer…