Fukami-Kanai Laboratory
Research Institute of Electrical Communication, Tohoku University

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 (Research 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.

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 Research 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 Research 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.

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

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“

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.

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

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.

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“