Year-End, Welcome, Celebration, and Farewell Party
We held the 2025 year-end party together with a welcome party for new Bachelor 3rd grade students, a celebration party for promoted members, and a farewell party for a member leaving soon.
Presentation given in IEDM2025
Our collaborative research with UC Santa Barbara and TSMC “BDAC-Free p-bits: Asynchronous Self-Coloring and On-Chip Annealing” by K. Selcuk, N. A. Aadit, C. Delacour, J. Q. Silva, N. S. Singh, H. Kaneko, S. Kanai, Y.-J. Wu, Y.-H. Chen, Y.-S. Chen, Y. C. Ong, K.-C. Huang, H. Chuang, H. Ohno, S. Fukami and K. Y. Camsari was presented in the 71st Annual IEEE International Electron Devices Meeting (IEDM 2025) on December 9th in San Francisco.
Press release: “New Fully Digital Design Paves the Way for Scalable Probabilistic Computing”
Futsal （The third-place match）
The third-place match of the ECEI (Group of Electrical Engineering, Communication Engineering, Electronic Engineering, and Information Engineering) Futsal Tournament was held.
(We won at the quarterfinal match on July 28 and lost at the semifinal match on September 30.)
We lost the game by 1-4 and finished 4th out of 14 participating labs. Next year, we’ll aim for the top three, just like we did in the Ekiden this year!
(Video during the game.)
Ekiden (long-distance relay)
The 59th Ekiden (long-distance relay) Race was held in the Aobayama New Campus. Fukami lab and Otsuka lab formed two joint teams (A and B). Out of 44 total entries, Team A placed 3rd and Team B placed 32nd.
<Record>
2018: 14th
2019: 13th
2022: 4th
2023: 4th
2024: 4th
We finally achieved 3rd place. Great job, everyone!
Paper published in npj 2D Materials and Applications
Our paper “Strategies to search for two-dimensional materials with long spin qubit coherence time” by M. Y. Toriyama, J. Zhan, S. Kanai, and G. Galli was published in npj 2D Materials and Applications.
Ms. Kaneko left for UC Santa Barbara (USA)
Haruna Kaneko (D2) leaves for UC Santa Barbara (USA) for an overseas training.
Rishi left after the three months of stay
Mr. Rishi Saddani (Visiting Student (DC)) returned to Imperial College London after three months stay.
Dr. Sud and Mr. Chiku won the Best Poster Award
Dr. Aakanksha Sud and Mr. Harumi Chiku (M1) won the Best Poster Award for their poster presentations at The International Symposium MSSp2025: Materials Science and Spintronics for Sustainable Futures from Tohoku held in Tohoku University from November 4th to 7th. The titles of their presentations were as follows:
Aakanksha Sud: Chiral Magnon–Phonon coupling in synthetic antiferromagnets for nonreciprocal energy transport
Harumi Chiku: Wireless signal energy harvesting based on field-free ferromagnetic resonance in magnetic tunnel junction
Congratulations!
MSSp2025 held
The International Symposium MSSp2025: Materials Science and Spintronics for Sustainable Futures from Tohoku was held in Tohoku University from November 4th to 7th.
We had 285 participants in total including 223 on-site participants.
During the symposium, an award speech and ceremony for Assoc. Prof. Jiahao Han who received the 2025 Core Research Cluster for Spintronics Award (CRC-Spin Award 2025) were also conducted.
Presentation given in The 70th Annual Conference on Magnetism and Magnetic Materials (MMM 2025)
Our members, Assoc. Prof. Shun Kanai, Mr. Yuma Sato (D3), Mr. Kazunari Kino (M2), Mr. Hitoshi Iida (M1), and Mr. Kota Nihei (M1) attended “The 70th Annual Conference on Magnetism and Magnetic Materials (MMM 2025)” held in Florida, USA on October 27-31, and gave presentations.
Softball Tournament, The 2nd Game
The second game in the group stage the softball tournament was held. After a fierce battle, the score was tied at 8-8.
We lost the match by a rock-paper-scissors tiebreaker.
Imoni party
We held an “Imoni party”, a traditional event in the Tohoku region similar to barbecue.
We deepened our bonds while enjoying Sendai-style and Yamagata-style imoni stew and BBQ under fine weather.
We exhibited at the “RIEC Open House 2025”
On October 11, we exhibited at the RIEC Open House 2025, held as part of the Tohoku University Research Institutes Open House “Katahira Festival 2025”.
In addition to a popular attraction for kids “Gauss Accelerator” and a challenge to create high-quality random numbers by hand, we presented several games including “Quantum Poker” in which principles of quantum mechanics such as uncertainty and entanglement are applied, with three members from the STAGE Center at the University of Chicago, our collaborative research partner. Many visitors enjoyed our exhibits.
The next event is scheduled for October 2027.
Paper on the effect of Joule heating on SOT switching of Mn3Sn published in Appl. Phys. Lett.
Our paper “Temperature dependence of current-induced switching in thin epitaxial films of Mn3Sn: Revealing the dominant role of spin–orbit torque” by K. Nihei, T. Uchimura, J. Han, K. Gas, S. Kanai, H. Ohno, and S. Fukami was published in Appl. Phys. Letters.
Antonia left after the three months of stay
Ms. Antonia Niklasch (Visiting Student (MC)) returned to Johannes Gutenberg University Mainz after three months stay.
Paper on non-reciprocal motion of skyrmion tube published in Nature Communications
Our paper “Observation of a non-reciprocal skyrmion Hall effect of hybrid chiral skyrmion tubes in synthetic antiferromagnetic multilayers ” by T. Dohi, M. Bhukta, F. Kammerbauer, V. K. Bharadwaj, R. Zarzuela, A. Sud, M. -A. Syskaki, D. M. Tran, T. Denneulin, S. Wintz, M. Weigand, S. Finizio, J. Raabe, R. Frömter, R. E. D. -Borkowski, J. Sinova, and M. Kläui was published in Nature Communications.
Press release: “Three-dimensional magnetic vortices in synthetic antiferromagnets move differently than magnetic vortices in two dimensions” (Link to a webpage of the Johannes Gutenberg University Mainz)
Paper on thermal fluctuation of chiral antiferromagnets published in Phys. Rev. Lett
Our paper “Electrically Tunable Picosecond-Scale Octupole Fluctuations in Chiral Antiferromagnets” by S. T. Konakanchi, S. Banerjee, M. M. Rahman, Y. Yamane, S. Kanai, S. Fukami, and P. Upadhyaya was published in Physical Review Letters.
The paper was selected as the Editor’s Suggestion.
Veronika left after the three weeks of stay
Ms. Veronika Růžičková (Visiting Student (BC)) returned to the Czech Technical University after three weeks stay.
Prof. Fukami awarded the KDDI Foundation Award 2025
Professor Shunsuke Fukami is awarded the KDDI Foundation Award 2025 for outstanding studies on “Spintronics for energy-efficient information technologies”. Congratulations! The award ceremony will be held on October 22nd in Tokyo.
Welcome party for Antonia, Victor, Veronika, and Rishi
We had a welcome party for Antonia (Univ. Mainz), Victor (Dual PhD between Lorrain and Tohoku), Veronika (Czech Tech Univ), and Rishi (Imperial College London) in a restaurant near the Sendai Station.
Paper on size dependence of SAF-s-MTJ published in Appl. Phys. Lett.
Our paper “Size dependence of the properties of synthetic-antiferromagnet-based stochastic magnetic tunnel junctions for probabilistic computing” by T. Kinoshita, J-Y. Yoon, N. Caçoilo, R. Mochizuki, H. Kaneko, S. Kanai, H, Ohno, and S. Fukami was published in Appl. Phys. Lett.
This paper is selected for Editor’s Pick.
Presentation given in the 86th JSAP Autumn Meeting 2025
Our members, Assoc. Prof. J. Han, Dr. Marui, Uchimura (D3), Sato (D2), Kino (M2), Saijo (M2), Iida (M1), and Nihei (M1) attended the 86th JSAP Autumn Meeting 2025 held in Meijo University in Aichi Prefecture and gave presentations.
Rishi joined us as a Visiting Student
Mr. Rishi Saddani of Imperial College London joined us as a Visiting Student (DC).
Veronika joined us as a Visiting Student
Ms. Veronika Růžičková of the Czech Technical University joined us as a Visiting Student (BC).
Softball tournament 2025 started
The softball tournament 2025 just started.
We won the opening game by a score of 7-4!
Paper on high-speed control of Mn3Sn published in Science
Our paper “Electrical coherent drivingof chiral antiferromagnet” by Y. Takeuchi, Y. Sato, Y. Yamane, J-Y. Yoon, Y. Kanno, T. Uchimura, K. V. De Zoysa, J. Han, S. Kanai, J. Ieda, H. Ohno, and S. Fukami was published in Science.
(The link above is for a free-access website, in which you can see the entire article and download the pdf file regardless of the subscription.)
Press release: “Antiferromagnets Outperform Ferromagnets in Ultrafast, Energy-Efficient Memory Operations“
Presentation given in the SPIE Optics + Photonics
Our members, Prof. S. Kanai and Prof. Gas attended “SPIE Optics + Photonics” held in San Diego, CA, USA, on August 3-7 and gave presentations.
Prof. Dietl is awarded the Tohoku University International Award
Prof. Tomasz Dietl, who served as a Visiting Professor from 2018-2020, is awarded the Tohoku University International Award – Special Award. As part of Tohoku University’s Homecoming Day 2025, scheduled for Saturday, October 11 at the Tohoku University Centennial Hall (Kawauchi Hagi Hall), the university will host an award ceremony.
Congratulations, Prof. Dietl!
Mr. Chiba is awarded the Best Poster Award
Mr. Shunya Chiba (D3) is awarded the Best Poster Award for his poster presentation at the Swedish-Korean Orbitronics Workshop (SKOW 2025) for his presentation titled “Comparative Study of Current-Induced Torque in Cr/CoFeB/MgO and W/CoFeB/MgO”. Congratulations!
Paper on FMR in (Ga,Mn)N published in Physical Review B
Our paper “Ferromagnetic resonance in a magnetically dilute percolating ferromagnet: An experimental and theoretical study” by Y. K. Edathumkandy, K. Das, K. Gas, D. Sztenkiel, D. Hommel, H. Przybylińska, and M. Sawicki was published in Physical Review B.
A paper on 2D-FM Fe3GeTe2 published in Applied Physics Letters
Our paper “Unraveling effects of competing interactions and frustration in vdW ferromagnetic Fe3GeTe2 nanoflake devices” by R. R. Chowdhury, D. Kurebayashi, J. Lustikova , O. A.Tretiakov, S. Fukami, R. P. Singh, and S. DuttaGupta was published in Applied Physics Letters.
Antonia joined us as a Visiting Student
Ms. Antonia Niklasch of Johannes Gutenberg University Mainz joined us as a Visiting Student (MC).
Futsal
The second match in a group league of the ECEI (Group of Electrical Engineering, Communication Engineering, Electronic Engineering, and Information Engineering) Futsal Tournament was held. Taking advantage of the rule of free substitution of players with a numerical superiority situation, we won the game by 10 to 2, proceeding to the knock-out stage.
Paper by Dr. Sud et al. published in Physical Review Letters
Our paper “Electrically Controlled Nonlinear Magnon-Magnon Coupling in a Synthetic Antiferromagnet” by A. Sud, K. Yamamoto, S. Iihama, K. Ishibashi, S. Fukami, H. Kurebayashi, and S. Mizukami was published in Physical Review Letters.
Press release: “Observation of Rabi-like Splitting Under Electrical Control in Artificial Magnets”
Mr. Uchimura returned from the Czech Academy of Sciences
Tomohiro Uchimura (D3) returned from Czech Academy of Sciences after a three-months overseas training.
In addition, a paper titled “Single-crystalline CrSb(0001) thin films grown by dc magnetron co-sputtering” containing his contributions during the overseas training was published on June 3 in Physical Review Materials.
Participated in the International Workshop on Ising Machines – 2025 and the Second Workshop on the Chicago-Tohoku Quantum Alliance
Our members, Prof. Fukami, Prof. Kanai, Dr. Nuno Cacoilo, Haruna Kaneko (D1), Manato Kawahara (D1), Takuma Kinoshita (M2), Yoshiki Maeda (M1), Prof. Ohno, Prof. Akerman, attended the International Workshop on Ising Machines – 2025 held in Evanston, IL, USA on May 13-15 and Second Workshop on the Chicago-Tohoku Quantum Alliance held in the University of Chicago, IL, USA on May 15-16, and gave presentations.
Paper by Prof. Fukami et al. published in npj Spintronics
Our paper “Spintronic memristors for computing” by Q. Shao, Z. Wang, Y. Zhou, S. Fukami, D. Querlioz, and L. O. Chua was published in npj Spintronics.
Presentation given in The 7th International Conference of Asian Union of Magnetics Societies (IcAUMS 2025)
Our members, Prof. S. Fukami, Assoc. Prof. J. Han, T. Kinoshita (M2), and T. Tasaki (M2) attended “The 7th International Conference of Asian Union of Magnetics Societies (IcAUMS 2025)” held in Okinawa Prefecture, on April 21-23 and gave presentations.
Paper by Prof. Yamane et al. published in Physical Review B
Our paper “Interfacial Dzyaloshinskii-Moriya interaction in nonmagnetic/noncollinear-antiferromagnetic bilayers” by Y. Yamane, Y. Araki, and S. Fukami was published in Physical Review B.
Cherry blossom viewing
We had a cherry blossom viewing party (“Hanami” in Japanese) with our lab members, which also served as a welcome party for new members (1 PD, 3 M1 students).
Paper by Prof. Gas et al. published in APL Materials
Our paper “Magnetic phase diagram of Mn3+xSn1−x epitaxial thin films: Extending the anomalous Hall effect to low temperatures via intrinsic alloying” by K. Gas, J.-Y. Yoon, Y. Sato, H. Kubota, P. Dłużewski, S. Kret, J. Z. Domagala, Y. K. Edathumkandy, Y. Takeuchi, S. Kanai, H. Ohno, M. Sawicki, and S. Fukami was published in APL Materials.
Prof. Dohi awarded the Funai Information Technology Award for Young Researchers
Assistant Professor Takaaki Dohi is awarded the Funai Information Technology Award for outstanding studies on “Pioneering Antiferromagnetic Skyrmionics”. Congratulations!
Prof. Kanai awarded Funai Information Technology Award for Young Researchers
Associate Professor Shun Kanai is awarded the Funai Information Technology Award for outstanding studies on “Unconventional Electronic Devices Based on Spin Dynamics”. Congratulations!
Dr. Kawarazaki joined us as a JSPS Post-doctoral Fellow
Dr. Ryo Kawarazaki joined us as a JSPS Post-doctoral Fellow.
Ms. Kaneko awarded the Outstanding Student Award of the Group of Electrical Engineering Communication Engineering, Electronic Engineering and Information Engineering
Ms. Kaneko (D1) is awarded the Outstanding Student Award of the Group of Electrical Engineering, Communication Engineering, Electronic Engineering and Information Engineering. Congratulations!
Mr. Kubota, Mr. Kurihara, and Mr. Takano took off
Mr. Kubota, Mr. Kurihara, and Mr. Takano received the Master Degree of Engineering. Congratulations! We wish your great success in the future!
Mr. Nihei awarded the Dean’s Award of the School of Engineering
Mr. Nihei (B4) is awarded the Dean’s Award of the School of Engineering. Congratulations!
Presentation given in the APS Global Physics Summit 2025
Our members, Assoc. Prof. S. Kanai, Assoc. Prof. Y. Yamane, M. Kawahara (D1) attended the”APS Global Physics Summit 2025“held in Anaheim, California, USA , on March16-21 and gave presentations.
Mr. Uchimura left for the Czech Academy of Sciences
Tomohiro Uchimura (D3) leaves for the Institute of Physics of the Czech Academy of Sciences for an overseas training.
Farewell party
We held a farewell party for members who are going to graduate this March (Kubota kun, Kurihara kun, and Takano kun).
