Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Sumito Tsunegi"'
Autor:
Sumito Tsunegi, Tomoyuki Kubota, Akira Kamimaki, Julie Grollier, Vincent Cros, Kay Yakushiji, Akio Fukushima, Shinji Yuasa, Hitoshi Kubota, Kohei Nakajima, Tomohiro Taniguchi
Publikováno v:
Advanced Intelligent Systems, Vol 5, Iss 9, Pp n/a-n/a (2023)
Physical reservoir computing is a framework that enables energy‐efficient information processing by using physical systems. Nonlinear dynamics in physical systems provide a computational capability that is unique to reservoirs. It is, however, diff
Externí odkaz:
https://doaj.org/article/e31a31df9c6246a49d01bb680902aabc
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022)
Abstract A new research topic in spintronics relating to the operation principles of brain-inspired computing is input-driven magnetization dynamics in nanomagnet. In this paper, the magnetization dynamics in a vortex spin-torque oscillator driven by
Externí odkaz:
https://doaj.org/article/c1dba01574d742fa87d1f818c3e6c3a1
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-11 (2022)
Abstract Recent studies have shown that nonlinear magnetization dynamics excited in nanostructured ferromagnets are applicable to brain-inspired computing such as physical reservoir computing. The previous works have utilized the magnetization dynami
Externí odkaz:
https://doaj.org/article/da9e2a6f35e34c5d8a25b2d61171330b
Autor:
Miguel Romera, Philippe Talatchian, Sumito Tsunegi, Kay Yakushiji, Akio Fukushima, Hitoshi Kubota, Shinji Yuasa, Vincent Cros, Paolo Bortolotti, Maxence Ernoult, Damien Querlioz, Julie Grollier
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
Spin-torque nano-oscillators have sparked interest for their potential in neuromorphic computing, however concrete demonstration are limited. Here, Romera et al show how spin-torque nano-oscillators can mutually synchronise and recognize temporal pat
Externí odkaz:
https://doaj.org/article/59f63c0aa49141078090527ef2b40150
Autor:
Nozomi Akashi, Yasuo Kuniyoshi, Sumito Tsunegi, Tomohiro Taniguchi, Mitsuhiro Nishida, Ryo Sakurai, Yasumichi Wakao, Kenji Kawashima, Kohei Nakajima
Publikováno v:
Advanced Intelligent Systems, Vol 4, Iss 10, Pp n/a-n/a (2022)
The rapid development in the field of artificial intelligence has increased the demand for neuromorphic computing hardware and its information‐processing capability. A spintronics device is a promising candidate for neuromorphic computing hardware
Externí odkaz:
https://doaj.org/article/350a0ade60fc427889235ea2a9fe3a6f
Autor:
Sumito Tsunegi, Tomohiro Taniguchi, Daiki Suzuki, Kay Yakushiji, Akio Fukushima, Shinji Yuasa, Hitoshi Kubota
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
Abstract Neuromorphic computing using spintronic devices, such as spin-torque oscillators (STOs), has been intensively studied for energy-efficient data processing. One of the critical issues in this application is stochasticity in magnetization dyna
Externí odkaz:
https://doaj.org/article/0bcab3da94574457a382e2170f92b63a
Autor:
Akira Kamimaki, Tomoyuki Kubota, Sumito Tsunegi, Kohei Nakajima, Tomohiro Taniguchi, Julie Grollier, Vincent Cros, Kay Yakushiji, Akio Fukushima, Shinji Yuasa, Hitoshi Kubota
Publikováno v:
Physical Review Research, Vol 3, Iss 4, p 043216 (2021)
Excitation of chaotic magnetization dynamics in nanomagnets is of great interest because it bridges the condensed matter physics and nonlinear science and has a potential to emerging technologies such as neuromorphic computing. However, it has been d
Externí odkaz:
https://doaj.org/article/42f81453710d4c2a9745d9d14e4f712e
Autor:
Nozomi Akashi, Terufumi Yamaguchi, Sumito Tsunegi, Tomohiro Taniguchi, Mitsuhiro Nishida, Ryo Sakurai, Yasumichi Wakao, Kohei Nakajima
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 043303 (2020)
Spintronics devices generate diverse nonlinear dynamics and have been studied as promising candidates for physical reservoir computing systems. However, the dynamic properties of spintronics reservoirs driven by input streams are largely yet to be un
Externí odkaz:
https://doaj.org/article/5b401aa89ffb4cfaa436344b6f72fcf0
Autor:
Terufumi Yamaguchi, Nozomi Akashi, Sumito Tsunegi, Hitoshi Kubota, Kohei Nakajima, Tomohiro Taniguchi
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 023389 (2020)
The role of the feedback effect on physical reservoir computing is studied theoretically by solving the vortex-core dynamics in a nanostructured ferromagnet. Although the spin-transfer torque due to the feedback current makes the vortex dynamics comp
Externí odkaz:
https://doaj.org/article/f9f0ca7e2d5a40feae5fce167ec21eca
A numerical analysis on the computational capability of physical reservoir computing utilizing a spin-torque oscillator with two free layers is reported. Conventional spintronics devices usually consist of two ferromagnets, where the direction of mag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96c4e000f9e859d024eb2542e8ec59f6
