A workshop aiming at strategic collaborations between Poland and Tohoku University in the fields of spintronics, quantum science/materials, etc., “Japanese–Polish Emerging Perspective Workshop – Toward the Quantum Computing” was held on October 3-4.
Active discussion was took place by 21 researchers from Poland and 18 researchers from Tohoku University.
Mr. Victor Huet joined us as a Double Degree Course Student between the University of Lorraine (France) and Tohoku University.
Our paper “Effect of nonlinear magnon interactions on stochastic magnetization switching” by M. Elyasi, S. Kanai, H. Ohno, S. Fukami, and G. E. W. Bauer was published in Physical Review B.
Our paper “Block Copolymer-Directed Single-Diamond Hybrid Structures Derived from X-ray Nanotomography” by K. Djeghdi, D. Karpov, S. N. Abdollahi, K. Godlewska, R. Iseli, M. Holler, C. Donnelly, T. Yuasa, H. Sai, U. B. Wiesner, U. Steiner, B. D. Wilts, M. Musya, S. Fukami, H. Ohno, A. Diaz, J. Llandro and I. Gunkel was published in ACS Nano.
Dr. Freya Johnson (Visiting Researcher) returned to the University of Cambridge after one month stay.
Mr. Edouard Kremer of the University of Lorraine joined us as a Visiting Student.
Tomorhiro Uchimura (D2) returned from TU Dortmund after a three-months overseas training.
Dr. Freya Johnson of the University of Cambridge joined us as a Visiting Researcher.
Our paper “Coexistence of antiferromagnetic cubic and ferromagnetic tetragonal polymorphs in epitaxial CuMnSb films” by A. Ciechan, P. Dłużewski, S. Kret, K. Gas, L. Scheffler, C. Gould, J. Kleinlein, M. Sawicki, L. W. Molenkamp, and P. Bogusławski was published in Physical Review B.
Mr. Fabian Kammerbauer of Johannes Gutenberg University Mainz joined us as a Visiting Student.
Our paper “Nanoscale spin rectifiers for harvesting ambient radiofrequency energy” by R. Sharma, T. Ngo, E. Raimondo, A. Giordano, J. Igarashi, B. Jinnai, S. Zhao, J. Lei, Y.-X. Guo, G. Finocchio, S. Fukami, H. Ohno and H. Yang was published in Nature Electronics.
Press release:Turning Unused Signals Such as Wi-Fi Into Energy for Electronics
Our paper “High-resolution three-dimensional imaging of topological textures in nanoscale single-diamond networks” by D. Karpov, K. Djeghdi, M. Holler, S. Narjes Abdollahi, K. Godlewska, C. Donnelly, T. Yuasa, H. Sai, U. B. Wiesner, B. D. Wilts, U. Steiner, M. Musya, S. Fukami, H. Ohno, I. Gunkel, A. Diaz and J. Llandro was published in Nature Nanotechnology.
News release from Paul Scherrer Institute: Nanoimaging Reveals Topological Textures in Nanoscale Crystalline Networks
Our paper “Polarization-dependent photoluminescence of Ce-implanted MgO and MgAl2O4” by M. Kawahara, Y. Abe, K. Takano, F. J. Heremans, J. Ishihara, S. E. Sullivan, C. Vorwerk, V. Somjit, C. P. Anderson, and G. Wolfowicz was published in Applied Physics Express.
This paper has been selected to “Spotlight”
https://iopscience.iop.org/journal/1882-0786/page/Spotlights
Press release:Exploring a New Qubit with the Gemstone Spinel
Our paper “Voltage-insensitive stochastic magnetic tunnel junctions with double free layers” by R. Ota, K. Kobayashi, K. Hayakawa, S. Kanai, K. Y. Çamsarı, H. Ohno, and S. Fukami was published in Applied Physics Letters.
Our members, Prof. Ohno (Advisor), Prof. Fukami, Assit. Prof. Yamane, Dr. Cacoilo, Mr. Uchimura (D2), Mr. Chiba (D2), and Mr. Kurihara (M2) attended the 22nd International Conference on Magnetism (ICM2024) held in Bologna, Italy on June 30th – July 5th, and gave presentations.
Mr. Robin Tietgen (Visiting Student) returned to Johannes Gutenberg University Mainz after four months stay.
A special issue titled “Special Issue on Spin Pumping and Spin-Orbit Torques in Magnetic Heterostructures” was published online in SPIN. Prof. Akash Kumar, Prof. Johan Åkerman, and Prof. Shunsuke Fukami served as Guest Editor for this issue.
Tomohiro Uchimura (D2) leave for TU Dortmund for an overseas training.
Our paper “Temperature dependence of the properties of stochastic magnetic tunnel junction with perpendicular magnetization” by H. Kaneko, R. Ota, K. Kobayashi, S. Kanai, M. Elyasi, G. E. W. Bauer, H. Ohno, and S. Fukami was published in Applied Physics Express.
Our paper “Double-free-layer stochastic magnetic tunnel junctions with synthetic antiferromagnets” by K. Selcuk, S. Kanai, R. Ota, H. Ohno, S. Fukami, and K. Y. Camsari was published in Physical Review Applied.
Our paper “Collective Spin-Wave Dynamics in Gyroid Ferromagnetic Nanostructures” by M. Gołębiewski, R. Hertel, M. d’Aquino, V. Vasyuchka, M. Weiler, P. Pirro, M. Krawczyk, S. Fukami, H. Ohno, and J. Llandro was published in ACS Applied Materials and Interfaces.
Our paper “Room-temperature flexible manipulation of the quantum-metric structure in a topological chiral antiferromagnet” by J. Han, T. Uchimura, Y. Araki, J.-Y. Yoon, Y. Takeuchi, Y. Yamane, S. Kanai, J. Ieda, H. Ohno, and S. Fukami in Nature Physics.
Press release: Manipulating the Geometry of ‘Electron Universe’ in Magnets
We had a cherry blossom viewing party(Hanami) with our lab members, which also served as a welcome party for new members (secretary, 4 new M1’s and 4 new B4’s).
Our paper “CMOS plus stochastic nanomagnets enabling heterogeneous computers for probabilistic inference and learning” by N. S. Singh, K. Kobayashi, Q. Cao, K. Selcuk, T. Hu, S. Niazi, N. A. Aadit, S. Kanai, H. Ohno, S. Fukami, and K. Y. Camsari was published in Nature Communications.
Press release: “Researchers Develop Energy-Efficient Computer by Combining CMOS with Stochastic Nanomagnet“
Dr. Ju-Young Yoon has awarded the Graduate School of Engineering Award. Congratulations!
Prof.Hideo Ohno, President of Tohoku University’s final lecture and a retirement party were held.
The final lecture was given in a hybrid, in-person at conference room of the Nano-Spin Research Building and online.
The title of the lecture was “Walking with Spintronics”, lasted about 70 minutes.
The venue was almost full of audience.Online attendees also reached the maximum capacity of 300.
After that, the retirement party was held at Sendai Kokusai Hotel.
The party was also great success.
Prof.Hideo Ohno’s final lecture and retirement party were held. For more information, click on the “Events” page.
Our paper “Wurtzite vs. rock-salt MnSe epitaxy: electronic and altermagnetic properties” by M. J. Grzybowski, C. Autieri, J. Domagala, C. Krasucki, A. Kaleta, S. Kret, K. Gas, M. Sawicki, R. Bożek, J. Suffczyński, and W. Pacuski was published in Nanoscale.
We went to Inawashiro Ski on March 1-2.
We had so much fun skiing and snowboarding, including Prof. Fukami’s family.
Some of us enjoyed sightseeing around Inawashiro City.
Mr. Robin Tietgen of Johannes Gutenberg University Mainz joined us as a Visiting Student.
Our paper “Homochiral antiferromagnetic merons, antimerons and bimerons realized in synthetic antiferromagnets” by M. Bhukta, T. Dohi, V. K. Bharadwaj, R. Zarzuela, M.-A. Syskaki, M. Foerster, M. A. Niño, J. Sinova, R. Frömter, and M. Kläui was published in Nature Communications.
Press release (external cite): Merons realized in synthetic antiferromagnets
We held a farewell party for members who are going to graduate this March( Abe san, Ota san, Shinoda san, Sumith san, Mochizuki san).
Our paper “Magneto-ionic modulation of the interlayer exchange interaction in synthetic antiferromagnets” by M.-A. Syskaki, T. Dohi, B. Bednarz, S. O. Filnov, S. A. Kasatikov, M. Bhukta, A. Smekhova, R. Pachat, J. W. van der Jagt, S. Ono, D. Ravelosona, J. Langer, M. Kläui, L. H. Diez, and G. Jakob was published in Applied Physics Letters.
Dr. Nuno Cacoilo joined us as a JSPS Postdoctoral Fellow.
Associate Professor Kanai’s RESEARCH HIGHLIGHT has been posted on the website of Advanced Institute for Materials Research (AIMR), Tohoku University.
Our paper “Single-nanometer CoFeB/MgO magnetic tunnel junctions with high-retention and high-speed capabilities” by J. Igarashi, B. Jinnai, K. Watanabe, T. Shinoda, T. Funatsu, H. Sato, S. Fukami, and H. Ohno was published in npj Spintronics.
Press release: “Tailoring to Various Applications with Single-nanometer Magnetic Tunnel Junction Technology“
Our paper “Pitch Scaling Prospect of Ultra-Small Magnetic Tunnel Junctions for High-Density STT-MRAM: Effects of Magnetostatic Interference from Neighboring Bits” by T. Shinoda, J. Igarashi, B. Jinnai, S. Fukami, H Ohno was published in IEEE Electron Device Letters.
We held the year-end party together with welcome party for Aurelien and new Bachelor 3rd grade students.
Our collaborative research with UC Santa Barbara “Hardware Demonstration of Feedforward Stochastic Neural Networks with Fast MTJ-based pbits” by N. S. Singh, S. Niazi, S. Chowdhury, K. Selcuk, H. Kaneko, K. Kobayashi, S. Kanai, H. Ohno, S. Fukami, K. Camsari was presented in the 69th Annual IEEE International Electron Devices Meeting (IEDM 2023) on December 12th in San Francisco.
Press release: “Researchers Develop Spintronic Probabilistic Computers Compatible with Current AI“
The 20th RIEC International Workshop on Spintronis was held as a part of the 7th Symposium for the Core Research Clusters for Materials Science and Spintronics and the 6th Symposium on International Joint Graduate Program in Materials Science and Spintronics.
61 oral presentations and 91 poster presentations were given and the number of total participants were 292.
Prof. Ohno (President of Tohoku University) received an honorary doctorate from the University of Warsaw. The ceremony took place on 13th November in Warsaw, where Prof. Fukami also attended.
Our paper “Directed Self-Assembly of Diamond Networks in Triblock Terpolymer Films on Patterned Substrates” by D. Abdelrahman, R. Iseli, M. Musya, B. Jinnai, S. Fukami, T. Yuasa, H. Sai, U. B. Wiesner, M. Saba, B. D. Wilts, U. Steiner, J. Llandro, and I. Gunkel was published in ACS Applied Materials and Interfaces.
Dr. Aurelien Lagarrigue joined us as a Postdoctoral Fellow.
Our paper “Spintronic devices for high-density memory and neuromorphic computing – A review” by B. Chen, M. Zeng, K. H. Khoo, D. Das, X. Fong, S. Fukami, S. Li, W. Zhao, S. S.P. Parkin, S.N. Piramanayagam, S. T. Lim was published in Materials Today.
Our members, Assoc. Prof. Kanai, Assist. Prof. Han, Mr. Uchimura (D2), Mr. Chiba (D1), Mr. Ota (M2), Mr. Shinoda (M2), Mr. Wakabayashi (M2), and Ms. Kaneko (M1), attended the 68th Annual Conference on Magnetism and Magnetic Materials (MMM 2023) held in Dallas, TX, USA on Oct. 30th – Nov. 3rd, and gave presentations.
We held “Imoni party”, a traditional event in Tohoku region similar to barbecue.
Our paper “Enhanced thermally-activated skyrmion diffusion with tunable effective gyrotropic force” by T. Dohi, M. Weißenhofer, N. Kerber, F. Kammerbauer, Y. Ge, K. Raab, J. Zázvorka, M.-A. Syskaki, A. Shahee, M. Ruhwedel, T. Böttcher, P. Pirro, G. Jakob, U. Nowak & M. Kläui was published in Nature Communications.
Press release (external cite): Magnetic whirls pave the way for energy-efficient computing
Our paper “Handedness anomaly in a non-collinear antiferromagnet under spin–orbit torque” by Ju-Young Yoon, Pengxiang Zhang, Chung-Tao Chou, Yutaro Takeuchi, Tomohiro Uchimura, Justin T. Hou, Jiahao Han*, Shun Kanai, Hideo Ohno,Shunsuke Fukami, and Luqiao Liu was published in Nature Materials.
Press release: Unveiling the Anomalous Dynamics of Non-collinear Antiferromagnets
Dr. Zhaochu Luo (Visiting Researcher) returned to Peking University after three months stay.
Our paper “Magnetic order in nanoscale gyroid networks” by Ami S. Koshikawa, Justin Llandro, Masayuki Ohzeki, Shunsuke Fukami, Hideo Ohno, and Naëmi Leo was published in Physical Review B.