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

Dr. Yuta Yamane, an Assistant Professor of the Frontier Research Institute for Interdisciplinary Sciences, joined us.

Dr. Aleksandr Kurenkov was awarded the Grand Prize of 2018-19 Photo Contest of Tohoku University. Congratulations!
Link to University website

Our paper “Stack structure and temperature dependence of spin-orbit torques in heterostructures with antiferromagnetic PtMn” by R. Itoh, Y. Takeuchi, S. DuttaGupta, S. Fukami, and H. Ohno was published in Applied Physics Letters.

We will report a result of SOT-MRAM at IEDM2019 held in San Francisco, USA. This research has been conducted under a collaboration with the Center for Innovative Integrated Electronic Systems, Tohoku University.
Press release is here. 

Commentary article entitled “スピン軌道トルク素子の脳型情報処理応用” written by Assoc. Prof. S. Fukami was published in “まぐね”.

Our co-authored paper “Giant perpendicular magnetic anisotropy in Ir/Co/Pt multilayers” by Y.-C. Lau, Z. Chi, T. Taniguchi, M. Kawaguchi, G. Shibata, N. Kawamura, M. Suzuki, S. Fukami, A. Fujimori, H. Ohno, and M. Hayashi has been published in Physical Review Materials.

Our paper “Write-error rate of nanoscale magnetic tunnel junctions in the precessional regime,” by T. Saino, S. Kanai, M. Shinozaki, B. Jinnai, H. Sato, S. Fukami, and H. Ohno was published in Applied Physics Letters.

Our paper “Integer factorization using stochastic magnetic tunnel junctions” by W. A. Borders, A. Z. Pervaiz, S. Fukami, K. Y. Camsari, H. Ohno ＆ S. Datta was published in Nature.

Press release for this paper is here.

Our paper “Spin-Pumping-Free Determination of Spin-Orbit Torque Efficiency from Spin-Torque Ferromagnetic Resonance” by A. Okada, Y. Takeuchi., K. Furuya, C. Zhang, H. Sato, S. Fukami, and H. Ohno was published in Physical Review Applied.

We held welcome party for Valentin.

W. A. Borders (D2), S. Fukami (Assoc. Prof.), and H. Ohno (Adviser) received the Japanese Society of Applied Physics, Outstanding Paper Award for their paper “Analogue spin–orbit torque device for artificial-neural-network-based associative memory operation” published in Applied Physics Express in 2017.

Mr. Valentin Desbuis, an internship student from School of Mines Nancy, joined us.

T. Dohi (D3) has started a four-month overseas study at Argonnne National Laboratory under the Graduate Program in Spintronics (GP-Spin), Tohoku University.

Professor Hideo Ohno received ISCS Welker Award for his “seminal contributions to the materials science, physics of ferromagnetic III-V semiconductors and spintronics.”
Link to the website of University

T. Dohi (D3) is awarded the Young Scientist Presentation Award of the Japanese Society of Applied Physics for his talk entitled “Ferromagnetic layer thickness dependent domain wall chirality and sign of effective Dzyaloshinskii-Moriya field in W/(Co)FeB/MgO systems.”

Our paper “Artificial Neuron and Synapse Realized in an Antiferromagnet/Ferromagnet Heterostructure Using Dynamics of Spin–Orbit Torque Switching” by A. Kurenkov, S. DuttaGupta, C. Zhang, S. Fukami, Y. Horio, and H. Ohno has been published in Advanced Materials.
Press release for this paper is here.

We held cherry‐blossom viewing (Hanami) party with members from Ohtsuka Lab. & Ikeda Lab.

T. Kishi-kun(M1), M. Takamatsu-kun(M1), Yoon-kun(M1) have joined us! 

Welcome to our laboratory!

K. Watanabe (D3) has received the Graduate School of Engineering Award.

J. Igarashi (D1) has started a three-month placement at Lorraine University within the Graduate Program in Spintronics (GP-Spin), Tohoku University.

We went to Inawashiro Ski and enjoyed skiing/snowboarding.

We held a party for final thesis of B4 and M2 and D3 students with Ikeda lab.

Our paper “Reversal of domain wall chirality with ferromagnet thickness in W/(Co)FeB/MgO systems” by T. Dohi, S. DuttaGuputa, Fukami, and H. Ohno has been published in Applied Physics Letters.

C. Zhang(Assistant Prof.), T. Dohi(D2), J. Igarashi(D2), M. Shinozaki(D1), K. Furuya(M1) attended “2019 MMM-intermag Joint Conference“.

Our paper “Spin-orbit torque-induced switching of in-plane magnetized elliptic nanodot arrays with various easy-axis directions measured by differential planar Hall resistance” by Y. Takahashi, Y. Takeuchi, C. Zhang, B. Jinnai, S. Fukami, and H. Ohno has been published in Applied Physics Letters.

Our paper “Temperature-dependent properties of CoFeB/MgO thin films: Experiments versus simulations” by H. Sato, P. Chureemart, F. Matsukura, R. W. Chantrell, H. Ohno, and R. F. L. Evans has been published in Physical Review B.

We held a year-end party with the member of Ohtsuka Lab. and Ikeda Lab.

We held wrap up party for EKIDEN & K. Watanebe’s predefense

Our paper “Scalability and wide temperature range operation of spin-orbit torque switching devices using Co/Pt multilayer nanowires” by B. Jinnnai, H. Sato, S. Fukami, and H. Ohno has been published in Applied Physics Letters .

Our paper “Angle dependent magnetoresistance in heterostructures with antiferromagnetic and non-magnetic metals” by S. DuttaGupta, R. Itoh, S. Fukami, and H. Ohno has been published in Applied Physics Letters, and selected as “Featured Article”.
In addition, AIP publishing has separately published a science highlight (Scilight) that deals with this article. 

We held Colloqium camp with Ohtsuka Lab. 

We held “Imoni” party. It was great and well done.

Our paper “An effect of capping-layer material on interfacial anisotropy and thermal stability factor of MgO/CoFeB/Ta/CoFeB/MgO/capping-layer structure” by M. Bersweiler, E. C. I. Enobio, S. Fukami, H. Sato, and H. Ohno has been published in Applied Physics Letters.

Y. Takeuchi (D2) has started a three-month placement at Technical University of Munich within the Graduate Program in Spintronics (GP-Spin), Tohoku University.