Dominant in-plane anomalous Hall effect in a monoclinic room-temperature ferromagnet

• Guoxin Zheng, Arjyama Bordoloi, Mingjun Fan, Shunsuke Kitou, Hiraku Saito, Taro Nakajima, Sobhit Singh, Takashi Kurumaji, Linda Ye

• arXiv:2606.10063

• Proposal No. 25804

Magnetic order and excitations in the magnetically intercalated van der Waals material Cr1/4NbSe2

• Ryota Yamaoka, Hiraku Saito, Yuki Settai, Xiang Huang, Daisuke Nishio-Hamane, Shingo Takahashi, Daichi Ueta, Tatsuro Oda, Hodaka Kikuchi, Tao Hong, Masaki Nakano, Shinichiro Seki, Taro Nakajima

• arXiv:2604.07117 

• Proposal No. 24401, 25405.

Stripe antiferromagnetism in van der Waals metal HoTe3 decoupled from charge density wave order

• Weiyi Yun, Ryota Nakano, Ryo Misawa, Rinsuke Yamada, Shun Akatsuka, Yoshichika Onuki, Priya Ranjan Baral, Hiraku Saitoh, Ryoji Kiyanagi, Takashi Ohhara, Taro Nakajima, Taka-hisa Arima, Max Hirschberger

• arXiv:2602.16261

• Proposal No. 22516

2026

Dirac-Like Ferrimagnet Ce3Au4Ge2Bi4 as a Member of a Homologous Series of Square-Net Topological Materials

• Atsushi Yamashita, Ryota Mizuno, Masayuki Ochi, Tatsuhiro Kojima, Hiraku Saito, Taro Nakajima, Akiko Nakao, Motoi Kimata, Masaki Kondo, Masashi Tokunaga, Takanori Kida, Masayuki Hagiwara, Masaki Nishi, Hiroshi Murakawa, Noriaki Hanasaki and Hideaki Sakai

• J. Am. Chem. Soc. 148, 28302–28309 (2026) 

• Press release : トポロジカル磁性体の新たな設計指針を確立 　― ディラック電子を持つ正方格子物質でホモロガス系列を発見 ―

• Proposal No. 24519, 25510

Observation of Altermagnetic Order Switching in Bulk MnTe by Polarized Neutron Diffraction

• Zheyuan Liu, Shinichiro Asai, Shingo Takahashi, Hiraku Saito, Taro Nakajima, Takatsugu Masuda

• Phys. Rev. Lett. 136, 256704  (2026)

• arXiv:2605.21616

• Press release : 交替磁性ドメインの磁場制御に成功、偏極中性子回折で観測

• Proposal No. 25401, 25403, 25503.

Interplay among spin, orbital, and lattice degrees of freedom in the magnetocaloric compound HoB2

• Terada N., Larsen S. R., Yamamoto T. D., Okuyama D., Nakao H., Kitahara G., Torii S., Saito H., Nakajima T., Sakai O., Mamiya H., Terashima K., Takeya H., Takano Y., Kitazawa H.

• Phys. Rev. B, 113, 224436 (2026)

• Proposal No. 24510, 23802

Collinear ferromagnetism with reduced moment length in kagome magnet Nd3Ru4Al12

• Ishihara Y., Nakano R., Yamada R., Nomoto T., Baral P. R., Hirschmann M. M., Gautam K., Kolincio K. K., Kikkawa A., Aji S., Saitoh H., Matsuda M., Taguchi Y., Arima T., Tokura Y., Nakajima T., Hirschberger M.

• Phys. Rev. B, 113, 214410 (2026)

• Proposal No. 24506

Uniaxial stress control of versatile helimagnetic phases in the square-lattice itinerant magnet EuAl4

• Masaki Gen, Takuya Nomoto, Hiraku Saito, Taro Nakajima, Yusuke Tokunaga, Rina Takagi, Shinichiro Seki, Taka-hisa Arima

• Phys. Rev. B 113, L100406 (2026).

• arxiv:2511.07079 

• Proposal No. 23801, 24508.

Emergent electric field induced by dissipative sliding dynamics of domain walls in a Weyl magnet

• Rinsuke Yamada, Daichi Kurebayashi, Yukako Fujishiro, Shun Okumura, Daisuke Nakamura, Fehmi S. Yasin, Taro Nakajima, Tomoyuki Yokouchi, Akiko Kikkawa, Yasujiro Taguchi, Yoshinori Tokura, Oleg A. Tretiakov & Max Hirschberger 

• Nat. Phys. 22, 239–244 (2026)

• Press release : 散逸的な磁壁運動による創発電場の発生 －磁壁の電流駆動における「摩擦」が生む巨大応答－

• Proposal No. 23515

2025

Phase Stability and Site Occupancy in Ba12Fe28Ti15O84: Insights from Fe2+–Ti4+ Substitution and Neutron Diffraction Studies

• Hiroki Onuma, Koichi Kakizaki, Kenji Kamishima, Hiraku Saito , and Taro Nakajima 

•  J. Phys. Soc. Jpn. 94, 104804 (2025)

• Proposal No. 22401

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

• Phys. Rev. B 111, 214115 (2025).

• arXiv.2306.12732

• Proposal No. 22401

Electronic commensuration of a spin moiré superlattice in a layered magnetic semimetal

• Takashi Kurumaji, Nisarga Paul, Shiang Fang, Paul M. Neves, Mingu Kang, Jonathan S. White, Taro Nakajima, David Graf, Linda Ye, Mun K. Chan, Takehito Suzuki, Jonathan Denlinger, Chris Jozwiak, Aaron Bostwick, Eli Rotenberg , Yang Zhao, Jeffrey W. Lynn, Efthimios Kaxiras, Riccardo Comin, Liang Fu, Joseph G. Checkelsky

• Sci. Adv. 11, eadu6686 (2025)

• Proposal No. 22401

Spontaneous Hall effect induced by collinear antiferromagnetic order at room temperature

• Rina Takagi, Ryosuke Hirakida, Yuki Settai, Rikuto Oiwa, Hirotaka Takagi, Aki Kitaori, Kensei Yamauchi, Hiroki Inoue, Jun-ichi Yamaura, Daisuke Nishio-Hamane, Shinichi Itoh, Seno Aji, Hiraku Saito, Taro Nakajima, Takuya Nomoto, Ryotaro Arita & Shinichiro Seki 

• Nat. Mater. 24, 63-68 (2025)

• Press release : 室温で情報の読み書きが可能な交代磁性体（「第三の磁性体」）を発見―超高密度・超高速な次世代の情報媒体に―

• Proposal No. 23520

2024

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

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

• J. Phys. Soc. Jpn. 93, 104602 (2024).

• arXiv:2405.05108

• Proposal No. 23401

Elastic and inelastic neutron scattering experiments under high pressure in the frustrated antiferromagnet CuFeO2

• Noriki Terada, Dmitry D. Khalyavin, Pascal Manuel, Shinichiro Asai, Takatsugu Masuda, Hiraku Saito, Taro Nakajima, and Toyotaka Osakabe

• Phys. Rev. B 110, 024406 (2024).

• Proposal No.  21801 

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