Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Takanori Shirokura"'
Autor:
Iriya Muneta, Takanori Shirokura, Pham Nam Hai, Kuniyuki Kakushima, Kazuo Tsutsui, Hitoshi Wakabayashi
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-9 (2022)
Abstract Layered materials, such as graphene and transition metal dichalcogenides, are able to obtain new properties and functions through the modification of their crystal arrangements. In particular, ferromagnetism in polycrystalline MoS2 is of gre
Externí odkaz:
https://doaj.org/article/dda183a6676b4b4b9870a3757832d4df
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022)
Abstract Topological materials, such as topological insulators (TIs), have great potential for ultralow power spintronic devices, thanks to their giant spin Hall effect. However, the giant spin Hall angle (θ SH > 1) is limited to a few chalcogenide
Externí odkaz:
https://doaj.org/article/221bc2c6e58348c39ab70c7eac609c61
Autor:
Takanori Shirokura, Pham Nam Hai
Publikováno v:
AIP Advances, Vol 12, Iss 12, Pp 125116-125116-7 (2022)
Half-Heusler alloy topological semimetal YPtBi is a promising candidate for an efficient spin source material having both large spin Hall angle θSH and high thermal stability. However, high-quality YPtBi thin films with low bulk carrier density are
Externí odkaz:
https://doaj.org/article/31ff93eaa64b43b497ca986c2ca03502
Autor:
Hao Wu, Aitian Chen, Peng Zhang, Haoran He, John Nance, Chenyang Guo, Julian Sasaki, Takanori Shirokura, Pham Nam Hai, Bin Fang, Seyed Armin Razavi, Kin Wong, Yan Wen, Yinchang Ma, Guoqiang Yu, Gregory P. Carman, Xiufeng Han, Xixiang Zhang, Kang L. Wang
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
It remains challenging to integrate topological insulators (TI) with magnetic tunnel junctions (MTJ) for spintronics applications. Here, the authors achieve a large tunneling magnetoresistance ratio and a low switching current density in a TI-MTJ dev
Externí odkaz:
https://doaj.org/article/ff4db472b985428aa504245b3de6e97f
Autor:
Takanori Shirokura, Pham Nam Hai
A low field second harmonic technique has been widely used for evaluation of spin orbit torque (SOT) despite it cannot distinguish SOT from various thermal effects such as the ordinary Nernst effect, anomalous Nernst effect, and spin Seebeck effect.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0624fd243d2f52a79df1c7d755581c1c
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100867381
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100867381
Autor:
Ho Hoang Huy, Zhang Ruixian, Takanori Shirokura, Shigeki Takahashi, Yoshiyuki Hirayama, Pham Nam Hai
Publikováno v:
IEEE Transactions on Magnetics. :1-1
Effect of stoichiometry on the spin Hall angle of the half-Heusler alloy topological semimetal YPtBi
Publikováno v:
Japanese Journal of Applied Physics. 61:073001
We investigated the effect of stoichiometry on the spin Hall angle of the half-Heusler alloy topological semimetal YPtBi by changing the composition ratio r of Y/Pt from 0.5 to 1.9. We confirmed that YPtBi with high C1 ordering can be deposited by co
Autor:
Nguyen Huynh Duy Khang, Takanori Shirokura, Tuo Fan, Mao Takahashi, Naoki Nakatani, Daisuke Kato, Yasuyoshi Miyamoto, Pham Nam Hai
Publikováno v:
Applied Physics Letters. 120:152401
Topological insulators (TIs) are promising for spin–orbit torque (SOT) switching thanks to their giant spin Hall angle. SOT switching using TIs has been studied so far in the thermal activation regime by direct currents or relatively long pulse cur
Publikováno v:
Extended Abstracts of the 2020 International Conference on Solid State Devices and Materials.
Autor:
Shinya Imai, Takuya Hamada, Masaya Hamada, Takanori Shirokura, Iriya Muneta, Kuniyuki Kakushima, Tetsuya Tatsumi, Shigetaka Tomiya, Kazuo Tsutsui, Hitoshi Wakabayashi
Publikováno v:
Extended Abstracts of the 2020 International Conference on Solid State Devices and Materials.