Origin of the magnetic field enhancement of the spin signal in metallic nonlocal spin transport devices
The nonlocal spin valve (NLSV) enables unambiguous study of spin transport, owing to its
ability to isolate pure spin currents. A key principle of NLSV operation is that the “spin signal” …
ability to isolate pure spin currents. A key principle of NLSV operation is that the “spin signal” …
Magnetic impurities as the origin of the variability in spin relaxation rates in Cu-based spin transport devices
The Elliott-Yafet spin relaxation mechanism posits linear proportionality between spin and
momentum lifetimes in low spin-orbit coupling nonmagnetic metals, and is widely accepted …
momentum lifetimes in low spin-orbit coupling nonmagnetic metals, and is widely accepted …
Nonlocal electrical detection of spin accumulation generated by anomalous Hall effect in mesoscopic films
Spin accumulation generated by the anomalous Hall effect (AHE) in mesoscopic
ferromagnetic N i 81 F e 19 (permalloy, Py) films is detected electrically by a nonlocal …
ferromagnetic N i 81 F e 19 (permalloy, Py) films is detected electrically by a nonlocal …
Tuning of spin relaxation and the Kondo effect in copper thin films by ionic gating
Spin relaxation length is a fundamental material parameter that influences all aspects of spin
dependent transport. The ability to tune the spin relaxation length leads to novel spintronic …
dependent transport. The ability to tune the spin relaxation length leads to novel spintronic …
Quantifying spin relaxation in mesoscopic Cu channels via a multitude of nonlocal spin valves
We fabricate a large number (> 100) of nonlocal spin valves with mesoscopic Cu channels.
A systematic method is used to extract Cu resistivity ρ Cu and spin relaxation length λ Cu …
A systematic method is used to extract Cu resistivity ρ Cu and spin relaxation length λ Cu …
Scaling of Kondo spin relaxation: Experiments on Cu-based nonlocal spin valves with Fe impurities
The relation between the Kondo spin-relaxation rate τ s K− 1 and the Kondo momentum-
relaxation rate τ e K− 1 is explored by using nonlocal spin valves with submicron copper …
relaxation rate τ e K− 1 is explored by using nonlocal spin valves with submicron copper …
Anisotropic spin relaxation induced by surface spin-orbit effects
It is a common perception that the transport of a spin current in polycrystalline metal is
isotropic and independent of the polarization direction, even though spin current is a …
isotropic and independent of the polarization direction, even though spin current is a …
Low temperature spin relaxation length exceeding 3 μm in highly conductive copper channels
Despite extensive studies of spin transport in metallic structures, it remains a challenge to
achieve spin relaxation length well above 1 μm in metals even at low temperatures. We …
achieve spin relaxation length well above 1 μm in metals even at low temperatures. We …
Spin relaxation in copper channels with submicron cross sections
We review our recent experimental studies of the spin relaxation processes in the submicron
copper channels of nonlocal spin valves (NLSV). Long spin relaxation lengths up to 3.0 μm …
copper channels of nonlocal spin valves (NLSV). Long spin relaxation lengths up to 3.0 μm …