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- Title
Resonance Method for Measuring Parameters of the Spin Transport in a Spin-Valve Structure.
- Authors
Strelkov, N. V.; Vedyaev, A. V.
- Abstract
The known methods for measuring the spin transport parameters in spin-valve structures are based on the Hanle effect, viz., electron spin precession in an external magnetic field and a decrease in the magnetoresistive signal. These methods make it possible to determine the spin relaxation time in the paramagnetic layer and the relative current polarization constant. We describe an alternative method of measuring in zero external magnetic field, which is based on the resonant increase in the magnetic susceptibility of the paramagnetic layer due to the paramagnetic resonance induced by the nonequilibrium magnetization due to the spin accumulation effect. The proposed method makes it possible to determine the absolute value of spin accumulation in a paramagnet, which can be used as a parameter for numerical solution of three-dimensional diffusion equations of spin transport.
- Subjects
PARAMAGNETIC resonance; HEAT equation; MAGNETIC susceptibility; MAGNETIC fields; NUCLEAR spin; ELECTRON spin
- Publication
Journal of Experimental & Theoretical Physics, 2023, Vol 136, Issue 4, p529
- ISSN
1063-7761
- Publication type
Article
- DOI
10.1134/S1063776123040064