Large spin current injection in nano-pillar-based lateral spin valve

Tatsuya Nomura, Kohei Ohnishi, Takashi Kimura

研究成果: 著書/レポートタイプへの貢献会議での発言

1 引用 (Scopus)

抄録

We have investigated the influence of the injection of a large pure spin current on a magnetization process of a non-locally located ferromagnetic dot in nano-pillar-based lateral spin valves. Here, we prepared two kinds of the nano-pillar-type lateral spin valve based on Py nanodots and CoFeAl nanodots fabricated on a Cu film. In the Py/Cu lateral spin valve, although any significant change of the magnetization process of the Py nanodot has not been observed at room temperature. The magnetization reversal process is found to be modified by injecting a large pure spin current at 77 K. Switching the magnetization by the nonlocal spin injection has also been demonstrated at 77 K. In the CoFeAl/Cu lateral spin valve, a room temperature spin valve signal was strongly enhanced from the Py/Cu lateral spin valve because of the highly spin-polarized CoFeAl electrodes. The room temperature nonlocal switching has been demonstrated in the CoFeAl/Cu lateral spin valve.

元の言語英語
ホスト出版物のタイトルFrontiers in Materials Science, FMS 2015
ホスト出版物のサブタイトルProceedings of the 2nd International Symposium on Frontiers in Materials Science
編集者Masato Yoshiya, Nam-Nhat Hoang, Markus Munzenberg, Tomoyuki Yamamoto
出版者American Institute of Physics Inc.
ISBN(電子版)9780735414211
DOI
出版物ステータス出版済み - 8 26 2016
イベント2nd International Symposium on Frontiers in Materials Science, FMS 2015 - Tokyo, 日本
継続期間: 11 19 201511 21 2015

出版物シリーズ

名前AIP Conference Proceedings
1763
ISSN(印刷物)0094-243X
ISSN(電子版)1551-7616

その他

その他2nd International Symposium on Frontiers in Materials Science, FMS 2015
日本
Tokyo
期間11/19/1511/21/15

Fingerprint

injection
magnetization
room temperature
electrodes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

これを引用

Nomura, T., Ohnishi, K., & Kimura, T. (2016). Large spin current injection in nano-pillar-based lateral spin valve. : M. Yoshiya, N-N. Hoang, M. Munzenberg, & T. Yamamoto (版), Frontiers in Materials Science, FMS 2015: Proceedings of the 2nd International Symposium on Frontiers in Materials Science [020011] (AIP Conference Proceedings; 巻数 1763). American Institute of Physics Inc.. https://doi.org/10.1063/1.4961344

Large spin current injection in nano-pillar-based lateral spin valve. / Nomura, Tatsuya; Ohnishi, Kohei; Kimura, Takashi.

Frontiers in Materials Science, FMS 2015: Proceedings of the 2nd International Symposium on Frontiers in Materials Science. 版 / Masato Yoshiya; Nam-Nhat Hoang; Markus Munzenberg; Tomoyuki Yamamoto. American Institute of Physics Inc., 2016. 020011 (AIP Conference Proceedings; 巻 1763).

研究成果: 著書/レポートタイプへの貢献会議での発言

Nomura, T, Ohnishi, K & Kimura, T 2016, Large spin current injection in nano-pillar-based lateral spin valve. : M Yoshiya, N-N Hoang, M Munzenberg & T Yamamoto (版), Frontiers in Materials Science, FMS 2015: Proceedings of the 2nd International Symposium on Frontiers in Materials Science., 020011, AIP Conference Proceedings, 巻. 1763, American Institute of Physics Inc., 2nd International Symposium on Frontiers in Materials Science, FMS 2015, Tokyo, 日本, 11/19/15. https://doi.org/10.1063/1.4961344
Nomura T, Ohnishi K, Kimura T. Large spin current injection in nano-pillar-based lateral spin valve. : Yoshiya M, Hoang N-N, Munzenberg M, Yamamoto T, 編集者, Frontiers in Materials Science, FMS 2015: Proceedings of the 2nd International Symposium on Frontiers in Materials Science. American Institute of Physics Inc. 2016. 020011. (AIP Conference Proceedings). https://doi.org/10.1063/1.4961344
Nomura, Tatsuya ; Ohnishi, Kohei ; Kimura, Takashi. / Large spin current injection in nano-pillar-based lateral spin valve. Frontiers in Materials Science, FMS 2015: Proceedings of the 2nd International Symposium on Frontiers in Materials Science. 編集者 / Masato Yoshiya ; Nam-Nhat Hoang ; Markus Munzenberg ; Tomoyuki Yamamoto. American Institute of Physics Inc., 2016. (AIP Conference Proceedings).
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abstract = "We have investigated the influence of the injection of a large pure spin current on a magnetization process of a non-locally located ferromagnetic dot in nano-pillar-based lateral spin valves. Here, we prepared two kinds of the nano-pillar-type lateral spin valve based on Py nanodots and CoFeAl nanodots fabricated on a Cu film. In the Py/Cu lateral spin valve, although any significant change of the magnetization process of the Py nanodot has not been observed at room temperature. The magnetization reversal process is found to be modified by injecting a large pure spin current at 77 K. Switching the magnetization by the nonlocal spin injection has also been demonstrated at 77 K. In the CoFeAl/Cu lateral spin valve, a room temperature spin valve signal was strongly enhanced from the Py/Cu lateral spin valve because of the highly spin-polarized CoFeAl electrodes. The room temperature nonlocal switching has been demonstrated in the CoFeAl/Cu lateral spin valve.",
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N2 - We have investigated the influence of the injection of a large pure spin current on a magnetization process of a non-locally located ferromagnetic dot in nano-pillar-based lateral spin valves. Here, we prepared two kinds of the nano-pillar-type lateral spin valve based on Py nanodots and CoFeAl nanodots fabricated on a Cu film. In the Py/Cu lateral spin valve, although any significant change of the magnetization process of the Py nanodot has not been observed at room temperature. The magnetization reversal process is found to be modified by injecting a large pure spin current at 77 K. Switching the magnetization by the nonlocal spin injection has also been demonstrated at 77 K. In the CoFeAl/Cu lateral spin valve, a room temperature spin valve signal was strongly enhanced from the Py/Cu lateral spin valve because of the highly spin-polarized CoFeAl electrodes. The room temperature nonlocal switching has been demonstrated in the CoFeAl/Cu lateral spin valve.

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