Effect of anisotropic spin absorption on the Hanle effect in lateral spin valves
arXiv:1312.7481 · doi:10.1103/PhysRevB.89.081308
Abstract
We have succeeded in fully describing dynamic properties of spin current including the different spin absorption mechanism for longitudinal and transverse spins in lateral spin valves, which enables to elucidate intrinsic spin transport and relaxation mechanism in the nonmagnet. The deduced spin lifetimes are found independent of the contact type. From the transit-time distribution of spin current extracted from the Fourier transform in Hanle measurement data, the velocity of the spin current in Ag with Py/Ag Ohmic contact turns out much faster than that expected from the widely used model.
21 pages, 3 figures, 9 pages (supplementary information)
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- Revisiting the measurement of the spin relaxation time in graphene-based devices
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- Contact Induced Spin Relaxation in Graphene Spin Valves with Al2O3 and MgO Tunnel Barriers
- Nonlocal Spin Dynamics in the Crossover from Diffusive to Ballistic Transport
- Anisotropic Hanle lineshape via anisotropic magnetothermoelectric phenomena
- Measurement of the Spin Absorption Anisotropy in Lateral Spin Valves
- Detection of the interfacial exchange field at a ferromagnetic insulator-nonmagnetic metal interface with pure spin currents
- Spin absorption by in situ deposited nanoscale magnets on graphene spin valves
- Effect of the interface resistance in non-local Hanle measurements
- Modulation of Spin Accumulation by Nanoscale Confinement using Electromigration in a Metallic Lateral Spin Valve
- Spin sensitive transport in RuCl_3/Pt heterostructures: revealing a field-transverse spin anisotropy in a spin liquid candidate