論文 – ページ 2 – Yoshishige Suzuki Lab, Osaka University

May 2021 Published

“Quasi-maser operation using magnetic tunnel junctions”, Y. Yamada, et al., Applied Physics Letters, 118(19), 192402 (2021)

Feb 2021 Published

“Physically Unclonable Functions With Voltage-ControlledMagnetic Tunnel Junctions”, Y. Tanaka, et al. (Collaboration work with Intel US), IEEE TRANS. MAGN., VOL. 57, NO. 2, 3400806 (2021).

Feb 2021 Published & Press release

“Uncooled sub-GHz spin bolometer driven by auto-oscillation”, M. Goto was published (Collaboration work with TDK), Nature Communications, 12:536 (2021). 日刊工業新聞, リソウ

Jan 2021 Published

“Numerical simulation of artificial spin ice for reservoir computing”, K. Hon, et al., Appl. Phys. Express 14 033001 (2021)

“Low frequency 1/f noise in deep submicrometer-sized magnetic tunnel junctions”, T. N. Anh Guyen et al. was published (Collaboration with IMS, Vietnam and AIST, Tsukuba). (Journal of Applied Physics, 129, 024503 (2021)).

October 2020 Published

“Electrical Control for Extending the Ramsey Spin Coherence Time ofIon-Implanted Nitrogen-Vacancy Centers in Diamond”, S. Kobayashi et al. was published (Collaboration work with Kyoto University). PHYSICAL REVIEW APPLIED 14,044033 (2020).

July 2020 published

“Enhanced magnetic control of magentic anisotropy via high thermal resistance capping layers in magnetic tunnel junctions”, R. Okuno et al. (Collaboration with TDK), has been published in J. Phys. Cond. Mat., 32 384001 (2020).

July 2020 Published

“Manipulating 1-dimensional skyrmion motion by the externalmagnetic field gradient”, J. Cho et al. (Collaboration with DIGST, Korea), has been published, New Journal of Physics, 22, 103053 (2020).

June 2020 Published

“Control of Spin−Orbit Torques by Interface Engineering in Topological Insulator Heterostructures”, F. Bonell et al. has been published (Collaboration work with ICN2, Spain). Nanoletters, 20, 5893 (2020).

2019 Dec. Published

Reservoir computing with two-bit input task using dipole coupled nanomagnet array, H. Nomura, et.al, Jpn. J. Appl. Phys 59, SEEG02, (2019)

「ナノスピントロニクス」の創成/”Nano-Spintronics”

私たちの研究室では「電荷」と「スピン」の物性が絡み合う現象をナノの世界で巧みに実現する「ナノスピントロニクス」の創成/発展を目指します。

このために高品位な金属単結晶ナノ構造をはじめとする新物質におけるスピンの動的な振る舞いを磁界・電界・光・スピン流などを駆使して制御します。

具体的には金属の超薄膜化によるスピンの電界による制御の実現、超薄膜化した界面に生じる反対称交換相互作用(DMI)による磁気スキルミオンの生成とその電界による制御。そして、これらの現象を用いた、超高感度センサーや情報熱力学的素子を研究します。さらには、これらを組み合わせたゼロエネルギー計算機(ブラウニアン計算機)や人工知能(AI)チップの提案を目指します。

We create and develop the research field of “nano-spintronics”, in which the two possessions of an electron, “charge” and “spin”, are utilized simultaneously to actualize novel phenomena.

For this purpose, we try to control dynamic properties of spins in the new materials like high quality metallic nanostructures by using magnetic and electric field, photons, and spin-current. In concrete, we realize the electric field control of magnetism in metallic ultrathin films and create skyrmions in the ultrathin magnetic layers with interfacial antisymmetric exchange interaction (DMI). We also try to use those novel phenomena to create ultra-high sensitive field sensor and information thermodynamic devices. Finally, we integrate those devices to realize zero energy computer (Brownian computer) and AI-chips.