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About
Website of Hikaru Watanabe
Welcome to website of Hikaru Watanabe.
Research Interests
UNDER CONSTRUCTION
UNDER CONSTRUCTION
UNDER CONSTRUCTION
UNDER CONSTRUCTION
Publications
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Quantum geometry in low-energy linear and nonlinear optical responses of the magnetic Rashba semiconductor (Ge,Mn)Te
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Dirac Charge in Antiferromagnetic Topological Semimetals
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Symmetry, microscopy and spectroscopy signatures of altermagnetism
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Transport evidence of current-induced nematic Dirac valleys in a parity-time-symmetric antiferromagnet
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Realization of a two-dimensional $d$-wave altermagnet in La$_2$O$_3$Mn$_2$Se$_2$
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Scaling-dependent tunability of spin-driven photocurrents in magnetic metamaterials
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Symmetry analysis of cross-circular and parallel-circular Raman optical activity
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Multiferroic Collinear Antiferromagnets with Hidden Altermagnetic Spin Splitting
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Nonlinear Hall effect driven by spin-charge-coupled motive force
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Gapped nodal planes and large topological Nernst effect in the chiral lattice antiferromagnet CoNb$_3$S$_6$
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(Review) Magnetic parity violation and parity-time-reversal-symmetric magnets
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Nonlinear optical responses in superconductors under magnetic fields: quantum geometry and topological superconductivity
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Effect of collective spin excitation on electronic transport in topological spin texture
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Generalized Pitaevskii relation between rectifying and linear responses: its application to reciprocal magnetization induction
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Symmetry analysis with spin crystallographic groups: Disentangling effects free of spin-orbit coupling in emergent electromagnetism
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Bulk photovoltaic effect in antiferromagnet: Role of collective spin dynamics
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Algorithm for spin symmetry operation search
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Nonlinear optical responses in noncentrosymmetric superconductors
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Emergent Magneto-multipoles and Nonlinear Responses of a Magnetic Hopfion
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Effects of relaxation on photovoltaic effect and possibility of photocurrent within transparent region
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Does the Ferroaxial Order Matter?
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Polarization-controlled tunable directional spin-driven photocurrents in a magnetic metamaterial with threefold rotational symmetry
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Nonreciprocal Meissner Response in Parity-Mixed Superconductors
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Nonreciprocal optical response in parity-breaking superconductors
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Superconducting piezoelectric effect
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Photocurrent response in parity-time symmetric current-ordered states
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Chiral Photocurrent in Parity-Violating Magnet and Enhanced Response in Topological Antiferromagnet
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Nonlinear electric transport in odd-parity magnetic multipole systems: Application to Mn-based compounds
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Bond Directional Anapole Order in a Spin-Orbit Coupled Mott Insulator Sr$_2$(Ir$_{1-x}$Rh$_x$)O$_4$
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Enhanced Magnetopiezoelectric Effect at N'eel temperature in CaMn$_2$Bi$_2$
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Observation of a Magnetopiezoelectric Effect in the Antiferromagnetic Metal EuMnBi$_2$
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Symmetry analysis of current-induced switching of antiferromagnets
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Group-theoretical classification of multipole order: Emergent responses and candidate materials
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Theory of orbital magnetic quadrupole moment and magnetoelectric susceptibility
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Magnetic hexadecapole order and magnetopiezoelectric metal state in Ba$_{1-x}$K$_x$Mn$_2$As$_2$
Curriculum Vitae (Short)
Employment
- 2024–2025
Associate Professor (PI), Graduate School of Engineering, Hokkaido University - 2024–2025
Assistant Professor (Ryotaro Arita group), Department of Physics, the University of Tokyo - 2022–2024
Assistant Professor (Ryotaro Arita group), Research Center for Advanced Science and Technology, the University of Tokyo - 2022.05–2022.09
Project Assistant Professor (Ryotaro Arita group), Research Center for Advanced Science and Technology (RCAST), the University of Tokyo - 2021–2022
Ph.D researcher of JSPS (Naoto Nagaosa group), Center for Emergent Matter Center (CEMS), RIKEN - 2018–2021
Research Fellowship for Young Scientists (Youichi Yanase group), Department of Physics, Kyoto University
Education
- 2018-2021
Doctoral course, Graduate school of science (supervised by Prof. Youichi Yanase), Kyoto University
Doctoral Dissertion
"Theoretical Study of Nonlinear Current Generation in Parity-time Inversion Symmetric Magnets"
(No. 4668, Degree of Science, 2021.03.23) - 2016-2018
Master course, Graduate school of science (supervised by Prof. Youichi Yanase), Kyoto University - 2015-2016
Bachelor course, Faculty of Science (supervised by Prof. Kensuke Kobayashi), Osaka University - 2012-2016
Bachelor course, Faculty of Science, Osaka University
Link
- Department of Applied Physics, Hokkaido University
- Laboratory of Theoretical Solid State Physics, Department of Applied Physics, Hokkaido University
- Arita group, Facalty of Science, the University of Tokyo
- Strong Correlation Theory Research Group, CEMS, RIKEN
- Condensed Matter Theory Physics, Graduate School of Science, Kyoto University
Contact
- Email: hikaru-watanabe[at]eng.hokudai.ac.jp
- Office: A2-20, Faculty of Engineering Building, Hokkaido University
- Address: ( ) Nishi 8, Kita 13, Sapporo 060-8628, Hokkaido, Japan