Interaction between spin–orbit torque and domain walls in a Ta/MnGa/NiAl structure
| Autor: | Tetsuya Uemura, Nguyen Viet Bao, Masaki Inoue, Michihiko Yamanouchi |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Nial Materials science Physics and Astronomy (miscellaneous) Condensed matter physics Magnetization reversal General Engineering General Physics and Astronomy 01 natural sciences Magnetic field Hysteresis Magnetization 0103 physical sciences Domain (ring theory) Perpendicular Spin orbit torque computer computer.programming_language |
| Zdroj: | Japanese Journal of Applied Physics. 58:100903 |
| ISSN: | 1347-4065 0021-4922 |
| DOI: | 10.7567/1347-4065/ab3e79 |
| Popis: | We investigate the interaction between spin–orbit torque (SOT) and domain walls (DWs) created during magnetization reversal in perpendicularly magnetized ultrathin MnGa sandwiched between Ta and NiAl. We examine the out-of-plane hysteresis loops under various in-plane magnetic fields H x s along the current I direction by using magnetotransport measurements. The applied I acts as an effective perpendicular magnetic field H eff on magnetization under H x . The slope of H eff versus I varies proportionally to H x and becomes saturated above ~0.15 T, which is consistent with a model based on magnetization reversal through SOT-assisted chiral DW motion under H x . |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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