Comparison of the use of NiFe and CoFe as electrodes for metallic lateral spin-valves
arXiv:1507.00858 · doi:10.1088/0957-4484/27/3/035201
Abstract
Spin injection and detection in Co60Fe40-based all-metallic lateral spin-valves have been studied at both room and low temperatures. The obtained spin signals amplitudes have been compared to that of identical Ni80Fe20-based devices. The replacement of Ni80Fe20 by CoFe allows increasing the spin signal amplitude by up to one order of magnitude, thus reaching 50 mΩ at room temperature. The spin signal dependence with the distance between the ferromagnetic electrodes has been analyzed using both a 1D spin transport model and finite elements method simulations. The enhancement of the spin signal amplitude when using CoFe electrodes can be explained by a higher effective polarization.
8 pages and 4 figures
References in corpus (7)
- Direct electronic measurement of the spin Hall effect
- Spin Pumping and Inverse Spin Hall Effect in Platinum: The Essential Role of Spin-Memory Loss at Metallic Interfaces
- Spin-dependent Seebeck effect in non-local spin valve devices
- Domain-wall depinning assisted by pure spin currents
- Control of spin current by a magnetic YIG substrate in NiFe/Al nonlocal spin valves
- Spin transport enhancement by controlling the Ag growth in lateral spin valves
- Effect of ferromagnetic contacts on spin accumulation in an all-metallic lateral spin-valve system: Semiclassical spin drift-diffusion equations
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- Measuring the magnetic anisotropy of the spin Hall effect and spin relaxation length in nickel and permalloy via electrical spin injection