Research
My laboratory will conduct condensed matter research, beginning with materials design for unconventional electronic and magnetic states, as well as the development of new methods for growing high-purity single crystals of target compounds. This will be followed by high-precision measurements of physical properties and the elucidation of crystal and magnetic structures using various diffraction techniques with quantum beams, such as neutrons and synchrotron X-rays. Our research targets include multiferroic materials, magnetic skyrmions, and rare-earth-based topological magnets. The development of new materials will open up unique opportunities for nontrivial transport responses, such as the anomalous Hall effect and thermal conduction enriched by magnetic frustration and quantum effects among magnetic multipoles.
Related Publications
Skyrmions:
Science 365, 914 (2019), doi.org/10.1126/science.aau0968
Phys. Rev. Lett. 119, 237201 (2017), doi.org/10.1103/PhysRevLett.119.237201
Multiferroics:
Nature 632, 273 (2024), doi.org/10.1038/s41586-024-07678-5
Nature Materials 16, 797 (2017), doi.org/10.1038/nmat4905
Phys. Rev. B 87, 014429 (2013), doi.org/10.1103/PhysRevB.87.014429
Phys. Rev. X 5, 031034 (2015), doi.org/10.1103/PhysRevX.5.031034
Rare earth intermetallics:
Phys. Rev. Mater. 6, 094410 (2022), doi.org/10.1103/PhysRevMaterials.6.094410
PNAS 121, e2318411121 (2024), doi.org/10.1073/pnas.2318411121
Phys. Rev. B 110, 064409 (2024), doi.org/10.1103/PhysRevB.110.064409
High-quality single crystal synthesis is one of the most important steps in our research. We develop methods for growing large and pure crystals of target compounds that have not been well-established yet. Our synthesis skills include chemical vapor transport reaction (CVT), metal flux, Bridgman method, Czochralski (CZ), and floating-zone (FZ) techniques.
Related Publications
Chemical vapor transport reaction:
Phys. Rev. X 5, 031034 (2015), doi.org/10.1103/PhysRevX.5.031034
Phys. Rev. B 95, 045142 (2017), doi.org/10.1103/PhysRevB.95.045142
Phys. Rev. Lett. 119, 237201 (2017), doi.org/10.1103/PhysRevLett.119.237201
Phys. Rev. Lett. 125, 267602 (2020), doi.org/10.1103/PhysRevLett.125.267602
Metal flux:
Phys. Rev. Materials 6, 094410 (2022), doi.org/10.1103/PhysRevMaterials.6.094410
J. Alloys Cmpd. 947, 169475 (2023), doi.org/10.1016/j.jallcom.2023.169475
PNAS 121, e2318411121 (2024), doi.org/10.1073/pnas.2318411121
Bridgman method:
Phys. Rev. Lett. 106, 167206 (2011), doi.org/10.1103/PhysRevLett.106.167206
Phys. Rev. B 87, 014429 (2013), doi.org/10.1103/PhysRevB.87.014429
Czochralski:
Science 365, 914 (2019), doi.org/10.1126/science.aau0968
Phys. Rev. B 100, 241115(R) (2019), doi.org/10.1103/PhysRevB.100.241115
Floating-zone:
Phys. Rev. B 110, L041116 (2024), doi.org/10.1103/PhysRevB.110.L041116
Quantum beam experiments, such as neutron diffraction and synchrotron X-ray scattering techniques, are powerful tools for unveiling symmetry-breaking and topological features of new quantum materials. We collaborate with experts from around the world and utilize facilities in the US, Japan, Germany, Switzerland, and many other countries.
Related Publications
Small-angle neutron scattering:
Phys. Rev. Lett. 119, 237201 (2017), doi.org/10.1103/PhysRevLett.119.237201 (MLZ in Germay)
J. Phys. Soc. Jpn. 90, 024705 (2021), doi.org/10.7566/JPSJ.90.024705 (MLZ in Germany)
(PSI in Switzerland)
Resonant x-ray scattering:
Science 365, 914 (2019), doi.org/10.1126/science.aau0968 (KEK in Japan)
Phys. Rev. Materials 6, 094410 (2022), doi.org/10.1103/PhysRevMaterials.6.094410 (KEK in Japan)
Inelastic neutron scattering:
J. Alloys Cmpd. 947, 169475 (2023), doi.org/10.1016/j.jallcom.2023.169475 (J-PARC in Japan)
Neutron triple-axis spectroscopy:
(J-RR3 in Japan)
(NIST in US)