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
25 papers · 1 filter
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…
Analysis of photo-induced chirality and magnetic toroidal moment based on Floquet formalism
Satoru Hayami, Ryota Yambe, Hiroaki Kusunose
We analyze the condition of photo-induced atomic-scale chirality and magnetic toroidal moment. By performing a high-frequency expansion in the Floquet formalism, we derive an effec…
Inelastic Light Scattering in the Vicinity of a Single-Atom Quantum Point Contact in a Plasmonic Picocavity
Shuyi Liu, Franco P. Bonafe, Heiko Appel +3
Here, using low-temperature optical scanning tunneling microscopy (STM), we investigate inelastic light scattering (ILS) in the vicinity of a single-atom quantum point contact (QPC…
Dynamics of a quantum system interacting with white non-Gaussian baths: Poisson noise master equation
Ken Funo, Akihito Ishizaki
Quantum systems are unavoidably open to their surrounding degrees of freedom. The theory of open quantum systems is thus crucial to understanding the fluctuations, dissipation, and…
Antiferromagnetic topological insulator with selectively gapped Dirac cones
A. Honma, D. Takane, S. Souma +14
Antiferromagnetic (AF) topological materials offer a fertile ground to explore a variety of quantum phenomena such as axion magnetoelectric dynamics and chiral Majorana fermions. T…
Pathway selectivity in time-resolved spectroscopy using two-photon coincidence counting with quantum entangled photons
Yuta Fujihashi, Akihito Ishizaki, Ryosuke Shimizu
Ultrafast optical spectroscopy is a powerful technique for studying the dynamic processes of molecular systems in condensed phases. However, in molecular systems containing many dy…
Strong Spin-Motion Coupling in the Ultrafast Dynamics of Rydberg Atoms
Vineet Bharti, Seiji Sugawa, Masaya Kunimi +7
Rydberg atoms in optical lattices and tweezers is now a well established platform for simulating quantum spin systems. However, the role of the atoms' spatial wavefunction has not…
4 electron temperature driven ultrafast electron localization
Kohei Yamagami, Hiroki Ueda, Urs Staub +9
Valence transitions in strongly correlated electron systems are caused by orbital hybridization and Coulomb interactions between localized and delocalized electrons. The transition…
Optimal control for manipulating vibrational wave packets through polarizability interactions induced by non-resonant laser pulses
Reon Ishii, Tomotaro Namba, Hiroyuki Katsuki +2
On the basis of optimal control theory, we numerically study how to optimally manipulate molecular vibrational dynamics by using cycle-averaged polarizability interactions induced…
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…
Influence of oxygen-coordination number on the electronic structure of single-layer La-based cuprates
M. Horio, X. Peiao, M. Miyamoto +12
We present an angle-resolved photoemission spectroscopy study of the single-layer T*-type structured cuprate SmLaSrCuO with unique five-fold pyramidal oxygen coordi…
Two-dimensional heavy fermion in a monoatomic-layer Kondo lattice YbCu
Takuto Nakamura, Hiroki Sugihara, Yitong Chen +6
The Kondo effect between localized -electrons and conductive carriers leads to exotic physical phenomena. Among them, heavy-fermion (HF) systems, in which massive effective carr…
Unconventional Hall effect and magnetoresistance induced by metallic ferroaxial ordering
Satoru Hayami, Rikuto Oiwa, Hiroaki Kusunose
Transport property under metallic ferroaxial ordering in an external magnetic field is theoretically investigated. After presenting the relation between the magnetoconductivity ten…
Proposal for simulating quantum spin models with the Dzyaloshinskii-Moriya interaction using Rydberg atoms and the construction of asymptotic quantum many-body scar states
Masaya Kunimi, Takafumi Tomita, Hosho Katsura +1
We have developed a method to simulate quantum spin models with the Dzyaloshinskii-Moriya interaction (DMI) using Rydberg atom quantum simulators. Our approach involves a two-photo…
Time-reversal switching responses in antiferromagnets
Satoru Hayami, Hiroaki Kusunose
We propose emergent time-reversal switching responses in antiferromagnets, which is triggered by an accompanying magnetic toroidal monopole, i.e., time-reversal odd scalar distinct…
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…
Chiral charge as hidden order parameter in URuSi
Satoru Hayami, Hiroaki Kusunose
We propose a chiral charge (electric toroidal monopole) as the hidden order parameter in URuSi, which satisfies all the symmetry conditions accumulated by many experime…
Structural transition induced by a local chemical/mechanical perturbation in biomolecules
Fumio Hirata
Structural transition induced by a local conformational change in biomolecules is formulated based on the generalized Langevin theory for the structural fluctuation of a molecule i…
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 Electronic Structure Modification in the Hidden Order Phase of CeCoSi
Shin-ichi Kimura, Hiroshi Watanabe, Shingo Tatsukawa +1
CeCoSi with no local inversion symmetric crystal structure () exhibits a phase transition of unknown origin (Hidden Order: HO) at about 12 K () above the antiferromagn…
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…
Current-Induced Metallization and Valence Transition in Black SmS
Shin-ichi Kimura, Hiroshi Watanabe, Shingo Tatsukawa +4
A strongly-correlated insulator, samarium mono-sulfide (SmS), presents not only the pressure-induced insulator-to-metal transition (IMT) with the color change from black to golden-…
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…