Injectional Equilibrium Spin Polarization in a Magnetic Transition, Taking into Account the Electron Spin Mobility

Taking into account the electron spin mobility, the paper considers the numerical solution to the equation for nonequilibrium spin polarization at the boundary of a magnetic contact with a current formed by two ferromagnets. The frequencies of spin injection radiation are calculated. It is shown tha...

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Bibliographic Details
Published inJournal of communications technology & electronics Vol. 65; no. 9; pp. 1046 - 1052
Main Authors Vilkov, E. A., Nikitov, S. A., Byshevsky-Konopko, O. A., Safin, A. R., Fomin, L. A., Chigarev, S. G.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.09.2020
Springer
Springer Nature B.V
Subjects
Communications Engineering
Current density
Electron spin
Electrons
Engineering
Ferromagnetism
Frequency ranges
Magnetic transitions
Nanoelectronics
Networks
Polarization (spin alignment)
Terahertz frequencies
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Summary:Taking into account the electron spin mobility, the paper considers the numerical solution to the equation for nonequilibrium spin polarization at the boundary of a magnetic contact with a current formed by two ferromagnets. The frequencies of spin injection radiation are calculated. It is shown that at a certain current density exceeding the threshold value, these frequencies lie in the terahertz frequency range. It was found that for the same terahertz frequency range, even for small values of the difference in the mobility of electrons with spin up and down, the current density can be two orders of magnitude lower than the current density with the same mobility.
ISSN:1064-2269
1555-6557
DOI:10.1134/S1064226920080136