Accumulation of spin-polarized states of charge carriers and a spintronic battery

Spin valves based on materials in which the spin-flip is suppressed by the spatial separation of charge carriers, while maintaining electric neutrality in the valve volume, are considered. The possibility of using these valves as electric batteries is discussed. Regulating the potential difference o...

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Bibliographic Details
Published in:Low temperature physics (Woodbury, N.Y.) N.Y.), 2020-07, Vol.46 (7), p.724-733
Main Authors: Pastur, L. А., Slavin, V. V., Yanovsky, A. V.
Format: Article
Language:English
Subjects:
Batteries
Conduction electrons
Current carriers
Electron spin
Electrons
Polarization (spin alignment)
Silicon
Spin valves
Valves
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Summary:Spin valves based on materials in which the spin-flip is suppressed by the spatial separation of charge carriers, while maintaining electric neutrality in the valve volume, are considered. The possibility of using these valves as electric batteries is discussed. Regulating the potential difference on the valve, one can expect the effects of incommensurability of the type of “devil's staircase” associated with the Coulomb interaction and redistribution of electrons occurring while the battery is charged and discharged. The effects of the emergence and vanishing of spontaneous spin polarization of conduction electrons with a change in the Fermi level in the valve are predicted. Such spin valves can also be used in implementing spintronic memory cells, supercapacitors, and similar devices.
ISSN:1063-777X
1090-6517
DOI:10.1063/10.0001370