Email this article Rezonansnyy metod izmereniya parametrov spinovogo transporta v spin-ventil'noy strukture
- Authors: Strelkov N.V1, Vedyaev A.V1
-
Affiliations:
- Physics Faculty, Moscow State University
- Issue: Vol 163, No 4 (2023)
- Pages: 597-601
- Section: Articles
- URL: https://journals.rcsi.science/0044-4510/article/view/145397
- DOI: https://doi.org/10.31857/S0044451023040168
- EDN: https://elibrary.ru/MLUABT
- ID: 145397
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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.
About the authors
N. V Strelkov
Physics Faculty, Moscow State University
Email: nik@magn.phys.msu.ru
119991, Moscow, Russia
A. V Vedyaev
Physics Faculty, Moscow State University
Author for correspondence.
Email: nik@magn.phys.msu.ru
119991, Moscow, Russia
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