Reduced Spin Hall Effects from Magnetic Proximity.
Journal Article
·
· Physical Review, B: Condensed Matter
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Forschungszentrum Julich (Germany)
We investigate temperature-dependent spin pumping and inverse spin Hall effects in thin Pt and Pd in contact with Permalloy. Our experiments show a decrease of the spin Hall effect with decreasing temperature, which is attributed to a temperature-dependent proximity effect. The spin Hall angle decreases from 0.086 at room temperature to 0.042 at 10 K for Pt and is nearly negligible at 10 K for Pd. By first-principle calculations, we show that the spin Hall conductivity indeed reduces by increasing the proximity-induced spin magnetic moments for both Pt and Pd. This work highlights the important role of proximity-induced magnetic ordering to spin Hall phenomena in Pt and Pd.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1357481
- Alternate ID(s):
- OSTI ID: 1176970
- Journal Information:
- Physical Review, B: Condensed Matter, Vol. 91, Issue 11; ISSN 0163-1829
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 72 works
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