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.
| Original language | English |
|---|---|
| Title of host publication | Frontiers in Materials Science, FMS 2015 |
| Subtitle of host publication | Proceedings of the 2nd International Symposium on Frontiers in Materials Science |
| Editors | Masato Yoshiya, Nam-Nhat Hoang, Markus Munzenberg, Tomoyuki Yamamoto |
| Publisher | American Institute of Physics Inc. |
| ISBN (Electronic) | 9780735414211 |
| DOIs | |
| Publication status | Published - Aug 26 2016 |
| Event | 2nd International Symposium on Frontiers in Materials Science, FMS 2015 - Tokyo, Japan Duration: Nov 19 2015 → Nov 21 2015 |
Publication series
| Name | AIP Conference Proceedings |
|---|---|
| Volume | 1763 |
| ISSN (Print) | 0094-243X |
| ISSN (Electronic) | 1551-7616 |
Other
| Other | 2nd International Symposium on Frontiers in Materials Science, FMS 2015 |
|---|---|
| Country | Japan |
| City | Tokyo |
| Period | 11/19/15 → 11/21/15 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Cite this
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. ed. / Masato Yoshiya; Nam-Nhat Hoang; Markus Munzenberg; Tomoyuki Yamamoto. American Institute of Physics Inc., 2016. 020011 (AIP Conference Proceedings; Vol. 1763).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Large spin current injection in nano-pillar-based lateral spin valve
AU - Nomura, Tatsuya
AU - Ohnishi, Kohei
AU - Kimura, Takashi
PY - 2016/8/26
Y1 - 2016/8/26
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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85006120461&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85006120461&partnerID=8YFLogxK
U2 - 10.1063/1.4961344
DO - 10.1063/1.4961344
M3 - Conference contribution
AN - SCOPUS:85006120461
T3 - AIP Conference Proceedings
BT - Frontiers in Materials Science, FMS 2015
A2 - Yoshiya, Masato
A2 - Hoang, Nam-Nhat
A2 - Munzenberg, Markus
A2 - Yamamoto, Tomoyuki
PB - American Institute of Physics Inc.
ER -