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Title: Reduced Spin Hall Effects from Magnetic Proximity.

Journal Article · · Physical Review, B: Condensed Matter

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
Citation Metrics:
Cited by: 72 works
Citation information provided by
Web of Science

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Cited By (21)

Tunable inverse spin Hall effect in nanometer-thick platinum films by ionic gating journal August 2018
Oscillatory interlayer coupling in spin Hall systems journal February 2018
Origin of enhanced anomalous Hall effect in ultrathin Pt/permalloy bilayers journal February 2016
Perspective: Interface generation of spin-orbit torques journal November 2016
Enhanced spin–orbit torque via interface engineering in Pt/CoFeB/MgO heterostructures journal March 2019
Anomalous spin Hall angle of a metallic ferromagnet determined by a multiterminal spin injection/detection device journal August 2019
Quantitative study of spin relaxation in rubrene thin films by inverse spin Hall effect journal July 2019
Temperature dependence of spin–orbit torques in Pt/Co/Pt multilayers journal February 2018
Surface magnetization thermal fluctuation driven anomalous behaviour of ordinary Hall effect in Pt/YIG journal December 2018
Gate voltage tuning of spin current in Pt/yttrium iron garnet heterostructure journal February 2019
Enhancement of spin mixing conductivity in Co/Pt and Co/Ta bilayers by CuO x interfacial layer decoration journal September 2019
Determining Key Spin-Orbitronic Parameters via Propagating Spin Waves journal January 2020
Estimating the spin diffusion length and the spin Hall angle from spin pumping induced inverse spin Hall voltages journal November 2017
Enhancement of spin-orbit torque by inserting CoO x layer into Co/Pt interface journal July 2018
Generation of pure superconducting spin current in magnetic heterostructures via nonlocally induced magnetism due to Landau Fermi liquid effects journal September 2018
Self-consistent determination of spin Hall angle and spin diffusion length in Pt and Pd: The role of the interface spin loss journal June 2018
Driving and detecting ferromagnetic resonance in insulators with the spin Hall effect text January 2015
Estimating spin diffusion length and spin Hall angle from spin pumping-induced inverse spin Hall voltages text January 2017
Magneto-Optical Detection of the Spin Hall Effect in Pt and W Thin Films text January 2017
Tunable inverse spin Hall effect in nanometer-thick platinum films by ionic gating text January 2018
Anomalous spin Hall angle of a metallic ferromagnet determined by a multiterminal spin injection/detection device text January 2019

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