Spin-lattice-coupled helical magnetic order in breathing pyrochlore magnets, CuAlCr4S8 and CuGaCr4S8

• Masaki Gen, Taro Nakajima, Hiraku Saito, Yusuke Tokunaga, Taka-hisa Arima

• arXiv:2405.05108

• Proposal No. 23401

Fermi surface reconstruction due to the orthorhombic distortion in Dirac semimetal YbMnSb2

• Dilip Bhoi, Feng Ye, Hanming Ma, Xiaoling Shen, Arvind Maurya, Shusuke Kasamatsu, Takahiro Misawa, Kazuyoshi Yoshimi, Taro Nakajima, Masaaki Matsuda, Yoshiya Uwatoko

• arXiv.2306.12732

• Proposal No. 22401

2024

Polarized and Unpolarized Neutron Scattering for Magnetic Materials at the Triple-axis Spectrometer PONTA in JRR-3

• Taro Nakajima, Hiraku Saito, Naoki Kobayashi, Takuro Kawasaki, Tatsuya Nakamura, Hazuki Kawano-Furukawa, Shinichiro Asai, and Takatsugu Masuda

• J. Phys. Soc. Jpn. 93, 091002 (2024).

• SPECIAL TOPICS: Restart of JRR-3 and Frontier Science of Reactor-Neutron

• Proposal No.  21507, 21401, 22518, and 22401

Non-coplanar helimagnetism in the layered van-der-Waals metal DyTe3

• Shun Akatsuka, Sebastian Esser, Shun Okumura, Ryota Yambe, Rinsuke Yamada, Moritz M. Hirschmann, Seno Aji, Jonathan S. White, Shang Gao, Yoshichika Onuki, Taka-hisa Arima, Taro Nakajima & Max Hirschberger 

• Nat. Commun. 15, 4291 (2024).

• arXiv:2306.04854

• Proposal No. 22515

Polarized Neutron Diffraction Study on UPt2Si2

• Fusako Kon, Chihiro Tabata, Hiraku Saito, Taro Nakajima, Hiroyuki Hidaka, Tatsuya Yanagisawa Hiroshi Amitsuka

• J. Phys. Soc. Jpn., 93, 044701 (2024).

• arXiv.2312.12718

• Proposal No. 22528

2023

Colossal negative magnetoresistance in field-induced Weyl semimetal of magnetic half-Heusler compound

• Kentaro Ueda, Tonghua Yu, Motoaki Hirayama, Ryo Kurokawa, Taro Nakajima, Hiraku Saito, Markus Kriener, Manabu Hoshino, Daisuke Hashizume, Taka-hisa Arima, Ryotaro Arita, Yoshinori Tokura 

• Nat. Commun. 14, 6339 (2023)

• Proposal No. 22517

In-plane anisotropy of the single-q and multiple-q ordered phases in the antiferromagnetic metal CeRh2Si2 

• Hiraku Saito, Fusako Kon, Hiroyuki Hidaka, Hiroshi Amitsuka, Cho Kwanghee, Masato Hagihala, Takashi Kamiyama, Shinichi Itoh, Taro Nakajima

• Phys. Rev. B 108, 094440 (2023).

• arXiv:2306.11284

• Proposal No. 21513

Spontaneous topological Hall effect induced by non-coplanar antiferromagnetic order in intercalated van der Waals materials

• H. Takagi, R. Takagi, S. Minami, T. Nomoto, K. Ohishi, M.-T. Suzuki, Y. Yanagi, M. Hirayama, N. D. Khanh, K. Karube, H. Saito, D. Hashizume, R. Kiyanagi, Y. Tokura, R. Arita, T. Nakajima, S. Seki

• Nat. Phys. 19, 961-968 (2023).

• arXiv:2303.04879

• Press release : 「反強磁性体におけるトポロジカルホール効果の実証に成功 - 磁気情報の新しい読み出し手法としての活用に期待 - 」

• Proposal No. 21401, 21511 and 22529.

Polarized neutron scattering study on the centrosymmetric skyrmion host material Gd2PdSi3

• Jiwon Ju, Hiraku Saito, Takashi Kurumaji, Max Hirschberger, Akiko Kikkawa, Yasujiro Taguchi, Taka-hisa Arima, Yoshinori Tokura, Taro Nakajima

• Phys. Rev. B 107, 024405 (2023).

• arXiv:2208.08188

• Proposal No. 21507, 21401 and 22401.

2022