Quantum Oscillations of the Microwave Sensitivity of a Spin-Torque Diode in a Magnetic Nanobridge

The reduction of the area of the cross section of a spin-valve-like structure to a nanoscale is an important problem of modern spin electronics. However, the transverse quantization of electronic states in the spin valve, which forms a magnetic nanobridge at this scale, additionally affects not only...

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Bibliographic Details
Published in:JETP letters 2017-12, Vol.106 (12), p.821-827
Main Authors: Demin, G. D., Popkov, A. F.
Format: Article
Language:English
Subjects:
Angular momentum
Atomic
Biological and Medical Physics
Biophysics
Electron spin
Electron states
Gold
Magnetoresistance
Magnetoresistivity
Measurement
Miscellaneous
Molecular
Optical and Plasma Physics
Oscillations
Particle and Nuclear Physics
Physics
Physics and Astronomy
Quantum Information Technology
Sensitivity
Solid State Physics
Spin valves
Spintronics
Torque
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Summary:The reduction of the area of the cross section of a spin-valve-like structure to a nanoscale is an important problem of modern spin electronics. However, the transverse quantization of electronic states in the spin valve, which forms a magnetic nanobridge at this scale, additionally affects not only the magnetoresistance but also the spin-transfer torques. In this work, features of the quantization of the magnetoresistance and spin-angular momentum associated with the spin transfer in a Co/Au/Co metallic nanobridge with metallic contacts have been theoretically analyzed. It has been shown that these features are manifested in oscillations of the microwave sensitivity of a spin-torque diode based on the spin-valve structure mentioned above.
ISSN:0021-3640
1090-6487
DOI:10.1134/S0021364017240055