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I am currently a Special Postdoctoral Researcher in RIKEN Center for Emergent Matter Science (CEMS). My research interest is field-induced properties and novel functionalities in frustrated magnets.

News

  1. 2024.04.21: I made one oral and one poster presentations at the 3rd Area meeting of “1000 Tesla Science”. I received the Best Poster Award.

  2. 2024.03.19: I made three oral presentations at the JPS meeting.

  3. 2024.03.12: A paper titled “Cluster rearrangement by chiral charge order in lacunar spinel GaNb4Se8” was published in Chemistry of Materials.
    [Chem. Mater. 36, 2993 (2024).]

  4. 2024.03.06: A preprint titled “Incommensurate broken-helix and broken-fanlike states in axion insulator candidate EuIn2As2” is now available online.
    [arXiv:2403.03022]

  5. 2024.02.29: I received JSPS KAKENHI the Academic Transformation Area Research (A) “1000 Tesla Science” for next two years!

  6. 2024.02.21: I made a poster presentation at the international meeting CEMS sympsium held in Akihabara.

  7. 2023.11.13: A preprint titled “Rhenium oxyhalides: a showcase for anisotropic-triangular-lattice quantum antiferromagnets” is now available online.
    [arXiv:2311.06040]

  8. 2023.10.17: A paper titled “Breathing pyrochlore magnet CuGaCr4S8: Magnetic, thermodynamic, and dielectric properties” was published in Physical Review Materials.
    [Phys. Rev. Mater. 7, 104404 (2023).]

  9. 2023.09.19: I attended the JPS meeting held at Tohoku University. Although I did not give my own talk, I enjoyed many exciting presentations.

  10. 2023.08.19: A paper titled “Real-space observation of ligand hole state in cubic perovskite SrFeO3” was published in Advanced Science.
    [Adv. Sci. 2302839 (2023).]

  11. 2023.08.08: A paper titled “Signatures of a magnetic superstructure phase induced by ultrahigh magnetic fields in a breathing pyrochlore antiferromagnet” was published in Proc. Natl. Acad. Sci. U.S.A. This work was also featured in ISSP News！
    [Proc. Natl. Acad. Sci. U.S.A. 120, e2302756120 (2023).]

  12. 2023.03.23: I made two oral presentations at the JPS meeting. The topics were "Simultaneous observation of orthorhombic distortion and magnetic modulation in a skyrmion-hosting compound EuAl4 by a resonant X-ray scattering experiment" and "Structural and magnetic properties of a novel breathing pyrochlore magnet CuGaCr4S8".

  13. 2023.03.21: A preprint titled “Breathing pyrochlore magnet CuGaCr4S8: Magnetic, thermodynamic, and dielectric properties” is now available online.
    [arXiv:2303.10671]

  14. 2023.03.10: A paper titled “Double dome structure of the Bose–Einstein Condensation in Diluted S = 3/2 Quantum Magnets” was published in Nature Communications.
    [Nat. Commun. 14, 1260 (2023).]

  15. 2023.03.09: A paper titled “Single crystal growths and magnetic properties of hexagonal polar semimetals RAuGe (R = Y, Gd−Tm, and Lu)” was published in Journal of Alloys and Compounds.
    [J. Alloys Compd. 947, 169475 (2023).]

  16. 2023.02.28: I received JSPS KAKENHI Grant-in-Aid for Young Scientists for next two years!

  17. 2023.01.26: A paper titled “Rhombic skyrmion lattice coupled with orthorhombic structural distortion in EuAl4” was published in Physical Review B.
    [Phys. Rev. B 107, L020410 (2023).]

  18. 2023.01.24: A preprint titled “Spin-lattice-coupled superstructure induced by ultrahigh magnetic fields in a breathing pyrochlore antiferromagnet” is now available online.
    [arXiv:2301.09509]

  19. 2022.12.09: A paper titled “Magnetic-field induced antiferromagnetic-antiferromagnetic phase transition in quasi-two-dimensional multiferroic material Ba2FeSi2O7” was published in Journal of the Physical Society of Japan.
    [J. Phys. Soc. Jpn. 92, 014701 (2023).]
    (This work was introduced in JPS Hot Topics!)

  20. 2022.12.06: I made an invited talk in Symposium "Synthesis, characterization, and functions of intriguing transition metal compounds" at 32nd Annual Meeting of MRS-Japan 2022 (@Yokohama).

  21. 2022.11.24: I made an invited talk at the high-field meeting.
    (2022.11.28 PS: I received the Best Presentation Award for Young Scientists for this presentation！)

  22. 2022.10.24: A paper titled “Dimensional reduction and incommensurate dynamic correlations in the S = 1/2 triangular-lattice antiferromagnet Ca3ReO5Cl2” was published in Nature Communications.
    [Nat. Commun. 13, 6310 (2022).]

  23. 2022.10.21: I went to SACLA and performed the pulse high magnetic field X-ray diffraction experiment organized by Ikeda-san in UEC univ from Oct. 18th to 21st. This technique is under development, so that many trial and error were required during the beamtime. Please also take a look at Ikeda-san's blog for a brief report.

  24. 2022.09.27: A preprint titled “Rhombic skyrmion lattice coupled with orthorhombic structural distortion in EuAl4” is now available online.
    [arXiv:2209.12751]

  25. 2022.09.23: A paper titled “Anisotropic magnetotransport properties coupled with spiral spin modulation in a magnetic semimetal EuZnGe” was published in Physical Review Materials.
    [Phys. Rev. Mater. 6, 094410 (2022).]

  26. 2022.09.14: I made an oral presentation at the JPS meeting. The topic was our recent dilatometry study on a skyrmion-hosting square-lattice itinerant magnet EuAl4. I enjoyed the first onsite conference in a long time.

  27. 2022.08.26: A paper titled “Complex magnetic phase diagram with a small phase pocket in a three-dimensional frustrated magnet CuInCr4S8” was published in Physical Review Research.
    [Phys. Rev. Research 4, 033148 (2022).]

  28. 2022.08.24: I made a poster presentation at the international meeting LT29 (29th International Conference on Low Temperature Physics) held in Sapporo and online from Aug. 18st to 24st.

  29. 2022.08.03: I have finished my last business trip before the Bon vacation. Since the beginning of April, I have visited SPring-8 twice, Photon Factory twice, and JRR-3 once, and having enjoyed quantum beam science to the fullest. I would like to further improve my skills in crystal structure analysis.

  30. 2022.06.09: A paper titled “Enhancement of giant magnetoelectric effect in Ni-doped CaBaCo4O7” was published in Physical Review B. This paper was selected as PRB Editors' Suggestion.
    [Phys. Rev. B 105, 214412 (2022).]

  31. 2022.05.26: The home page has been renewed. I would like to enrich the contents little by little.

  32. 2022.05.21: A paper titled “Nematicity and fractional magnetization plateaus induced by spin-lattice coupling in the classical kagome-lattice Heisenberg antiferromagnet” was published in Physical Review B.
    [Phys. Rev. B 105, 174424 (2022).]

  33. 2022.05.17: A paper titled “Magnetovolume Effect on the First-Order Metamagnetic Transition in UTe2” was published in Journal of the Physical Society of Japan.
    [J. Phys. Soc. Jpn. 91, 063703 (2022).]
    (2022.05.27 PS: This paper was selected as JPSJ Editors' Choice!)

  34. 2022.05.09: A paper titled “Quantum phase of the chromium spinel oxide HgCr2O4 in high magnetic fields” was published in Physical Review B.
    [Phys. Rev. B 105, L180405 (2022).]

  35. 2022.04.01: I moved to RIKEN Center for Emergent Matter Science (CEMS) and join Strong-correlation Quantum Science Research Team as Special Postdoctoral Researcher.

  36. 2022.03.31: A paper titled “Enhancement of giant magnetoelectric effect in Ni-doped CaBaCo4O7” was submitted.
    [arXiv:2203.16397]

  37. 2022.02.21: A paper titled “Nematicity and fractional magnetization plateaus induced by spin-lattice coupling in the classical kagome-lattice Heisenberg antiferromagnet” was submitted.
    [arXiv:2202.09077]

  38. 2022.01.13: I visited Osaka university from Jan. 11st to 13rd to perform high-presure synthesis at Ishiwata Lab. It was very exciting for me, and fortunately the synthesis was also successful.

  39. 2021.12.22: I made a poster presentation at the international meeting ICFTS (The International Conference on Frustration, Topology and Spin Textures). The topic was the magnetic phase diagram of CuInCr4S8.

  40. 2021.12.21: A paper titled “Physical properties of liquid oxygen under ultrahigh magnetic fields” was published in Physical Review B.
    [Phys. Rev. B 104, 224423 (2021).]

  41. 2021.12.17: A paper titled “Complex magnetic phase diagram with a small phase pocket in a three-dimensional frustrated magnet CuInCr4S8” was submitted.
    [arXiv:2112.08990]

  42. 2021.11.19: A paper titled “Phase transition in the 5d1 double perovskite Ba2CaReO6 induced by high magnetic field” was published in Physical Review B.
    [Phys. Rev. B 104, 174422 (2021).]

  43. 2021.11.09: A paper titled “Effects of spin-lattice coupling and a magnetic field in classical Heisenberg antiferromagnets on the breathing pyrochlore lattice” was published in Physical Review B.
    [Phys. Rev. B 104, 085206 (2021).]

  44. 2021.09.20: I made two oral presentations at the JPS meeting. The topic was the discovery of novel field-induced magnetic phases on the breathing pyrochlore lattice magnets, LiGaCr4O8 and CuInCr4S8.

  45. 2021.08.24: A paper titled “Heavy carrier effective masses in van der Waals semiconductor Sn(SeS) revealed by high magnetic fields up to 150 T” was published in Physical Review B.
    [Phys. Rev. B 104, 085206 (2021).]

  46. 2021.04.01: I moved to Arima-Tokunaga Lab., Department of Advanced Materials Science, University of Tokyo. I will work as a JSPS postdoctoral.

  47. 2021.03.13: I made an oral presentation at the JPS meeting (Area 3). The topic was quantum antiferromagnets on the anisotropic triangular lattice A3ReO5X2.

  48. 2021.03.08: A paper titled “Higher magnetic-field generation by a mass-loaded single-turn coil” was published in Review of Scientific Instruments.
    [Rev. Sci. Instrum. 92, 033902 (2021).]

  49. 2021.02.22: I joined FBG strain gauge meet up (online) and made a short presentation.

  50. 2021.01.28: I passed the PhD defence.

  51. 2021.01.21: I gave a talk at the 8th online high-field seminar. The topic was “Sucsessive phase transitions on the breathing pyrochlore magmets in high magnetic fields”.

  52. 2020.10.28: A paper titled “Broad tunability of carrier effective masses in two-dimensional halide perovskites” was published in ACS Energy Letter.
    [ACS Energy Lett. 5, 3609 (2020).]

  53. 2020.09.11: I made a poster presentation at the JPS meeting (Area 5). The topic was the Paschen-Back effect on ruby in ultrahigh magnetic fields. (2020.09.25 PS: I received the Best Student Presentation Award for this presentation！)

  54. 2020.08.18: A paper titled “Crystal-field Paschen-Back effect on ruby in ultrahigh magnetic fields” was published in the open access journal Physical Review Research.
    [Phys. Rev. Research 2, 033257 (2020).]

  55. 2020.03.21: I visited Germany from Mar. 5th to 21st to perform ESR measurement at Dresden High Magnetic Field Laboratory (HZDR). It was my first experience to do experiment in a static magnetic field.

  56. 2020.02.25: A paper titled “Magnetization process of the breathing pyrochlore magnet CuInCr4S8 in ultrahigh magnetic fields up to 150 T” was published in Physical Review B.
    [Phys. Rev. B 101, 054434 (2020).]

  57. 2020.02.21: The science camp was held in Kohama laboratory from Feb. 18th to 21st. We performed high-field experiments with undergraduate students.

  58. 2019.12.05: I made two presentations (1 oral, 1 poster) at the high-field meeting held at Osaka university.

  59. 2019.10.31: A paper titled “Magnetocaloric effect and spin-strain coupling in the spin-nematic state of LiCuVO4” was published in the open access journal Physical Review Research.
    [Phys. Rev. Research 1, 033065 (2019).]

  60. 2019.10.16: This website is opened.