Our paper “Electrical mutual switching in a noncollinear-antiferromagnetic–ferromagnetic heterostructure” by J-Y. Yoon, Y. Takeuchi, R. Takechi, J. Han, T. Uchimura, Y. Yamane, S. Kanai, J. Ieda, H. Ohno, and S. Fukami was published in Nature Communications.
Press release: “New AI Function on the Horizon Thanks to Electrically Programmable Spintronic Device“
Our paper “Unconventional Spin Hall Magnetoresistance in Noncollinear Antiferromagnet/Heavy Metal Stacks” by T. Uchimura, J. Han, P. Tang, J.-Y. Yoon, Y. Takeuchi, Y. Yamane, S. Kanai, G. E. W. Bauer, H. Ohno, and S. Fukami was published in Physical Review Letters.
Dr. Ju-Young Yoon (received Ph. D. in 2023) resigned from the Specially-Appointed Research Fellow of RIEC and left for Switzerland to be assigned to a Researcher at the ETH Zurich. We wish you great success!
Dr. Eva Diaz joined us as a Postdoctoral Fellow.
We held the year-end party together with a welcome party for new Bachelor 3rd grade students.
Associate Professor Jiahao Han (AIMR) is awarded the IEEE Magnetics Society Early Career Award for outstanding studies on controlling magnonic and nonlinear electronic transport by magnetic textures, and on implementing topological insulators to achieve room-temperature efficient magnetic switching.
The award ceremony will take place in the 16th Joint Conference on Magnetism and Magnetic Materials and Intermag to be held in New Orleans, USA, on January 13-17, 2025.
He will be the first awardee in Japanese institutions. Huge congratulations!
Our collaborative research with UC Santa Barbara “Beyond Ising: Mixed Continuous Optimization with Gaussian Probabilistic Bits using Stochastic MTJs” by N. S. Singh, C. Delacour, S. Niazi, K. Selcuk, D. Golenchenko, H. Kaneko, S. Kanai, H. Ohno, S. Fukami and K. Y. Camsari was presented in the 70th Annual IEEE International Electron Devices Meeting (IEDM 2024) on December 10th in San Francisco.
Press release: “Researchers Develop Spintronics Platform for Energy-Efficient Generative AI“
An international workshop: “SpinX 2024 : Harnessing Spintronics for Tomorrow’s Technology” was held from December 9th to 10th. Fusion of spintronics with something X (= magnon, skyrmion, computing, etc.) was actively discussed by 41 participants in total.
We participated in the 58th Ekiden race (long-distance relay race) of the Group of Electrical Engineering, Communication Engineering, Electronic Engineering, and Information Engineering. We came 4th out of 33 teams!
An International Symposium: “CRCGP-MSSP 2024 (The 8th Symposium for the Core Research Clusters for Materials Science and Spintronics and the 7th Symposium on International Joint Graduate Programs in Materials Science and Spintronics)” was held from November 18th to 21st.
We had 344 participants from 17 countries and regions.
We held “Imoni party”, a traditional event in Tohoku region similar to barbecue. It was wonderful and everyone had a good time.
We are pleased to announce the “21st RIEC International Workshop on Spintronics” that will be held as a part of a joint symposium “THE FUTURE OF COMPUTING: PERSPECTIVES” on February 25-28, 2025, at Tohoku University, Sendai, Japan.
The objective of this symposium is to provide an opportunity to discuss the future of computing by a variety of researchers studying unconventional computers. The symposium will be constructed by multidisciplinary sessions consisting of speakers from different fields and focused sessions for silicon technologies, spintronics, and neurobiocomputing.
For details, please see the website of the symposium:
https://www.nanospin.riec.tohoku.ac.jp/RIEC_Sympo/index.html
We are pleased to announce an international workshop “SpinX 2024 : Harnessing Spintronics for Tomorrow’s Technology” to be held on December 9-10 at Tohoku University. Magnonics, spin-orbit torque, neuromorphic computing, skyrmionics, etc. will be discussed.
For details, please see the website of the symposium:
https://sites.google.com/view/spinx2024/home
Our paper “Comparative Study of Current-Induced Torque in Cr/CoFeB/MgO and W/CoFeB/MgO” by S. Chiba, Y. Marui, H. Ohno, and S. Fukami was published in Nano Letters.
Mr. Fabian Kammerbauer (Visiting Student) returned to Johannes Gutenberg University Mainz after three months stay.
An application note “Impact of External Magnetic Fields on STT-MRAM” by the MRAM Technology Group including Prof. Fukami was published in IEEE Electron Devices Magazine.
Our paper “Electric-field manipulation of magnetization in an insulating dilute ferromagnet through piezoelectromagnetic coupling” by D. Sztenkiel, K. Gas, N. G. Szwacki, M. Foltyn, C. Śliwa, T. Wojciechowski, J.Z. Domagala, D. Hommel, M. Sawicki, and T. Dietl was published in Communications Materials.
Our paper “Spin Hall magnetoresistance in Pt/(Ga,Mn)N devices” by J. A. M.-Rodarte, K. Gas, M. H-Zaldívar, D. Hommel, M. Sawicki, and M. H. D. Guimarães was published in Applied Physics Letters.
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).
