期刊
PHYSICAL REVIEW B
卷 98, 期 13, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.98.134406
关键词
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资金
- Office of Naval Research [N00014-15-1-2449]
- NSF MRSEC program through the Cornell Center for Materials Research [DMR-1719875]
- Office of the Director of National Intelligence (ODNI), Intelligence Advanced Research Projects Activity (IARPA) [W911NF-14-C0089]
- NSF [ECCS-1542081]
The magnetic proximity effect (MPE) is a well-established magnetic phenomenon that occurs at certain heavy-metal (HM)/ferromagnet (FM) interfaces. However, there is still an active debate as to whether the presence of a MPE affects spin transport through such a HM/FM interface. Here we demonstrate that the MPE at Pt/Co and Au0.25Pt0.75/Co interfaces can be enhanced substantially by thermal annealing protocols. From this ability, we show that the MPE has no discernible influence on either the dampinglike or the fieldlike spin-orbit torques exerted on the FM layer due to the spin Hall effect of the HM layer, indicating a minimal role of the MPE compared to other interfacial effects, e.g., spin memory loss and spin backflow.
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