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

JETP Letters volume 106, pages 821–827 (2017)Cite this article

Abstract

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.

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Authors and Affiliations

  1. National Research University of Electronic Technology (MIET), Zelenograd, Moscow, 124498, Russia

    G. D. Demin & A. F. Popkov

  2. Laboratory of Physics and Magnetic Heterostructures for Spintronics and Energy Efficient Information Technologies, Moscow Institute of Physics and Technology (MIPT), Dolgoprudnyi, Moscow region, 141701, Russia

    G. D. Demin & A. F. Popkov

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  1. G. D. Demin
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  2. A. F. Popkov
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Correspondence to G. D. Demin.

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Original Russian Text © G.D. Demin, A.F. Popkov, 2017, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2017, Vol. 106, No. 12, pp. 782–788.

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Demin, G.D., Popkov, A.F. Quantum Oscillations of the Microwave Sensitivity of a Spin-Torque Diode in a Magnetic Nanobridge. Jetp Lett. 106, 821–827 (2017). https://doi.org/10.1134/S0021364017240055

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  • DOI: https://doi.org/10.1134/S0021364017240055