Abstract
Dynamics of a filter-free synthesizer of discrete frequency spectrum based on the phase-locked system of an antiferromagnetic spintronic oscillator, which generates THz oscillations in a wide frequency range under dc current, was investigated. The dependence of the phase-locked-loop gain on the difference between the frequencies of phase-locked oscillations at different feedback division factors is obtained by the method of slowly varying amplitudes. It is shown that an increase in the division factor narrows the band of phase-locked oscillations at invariable parameters of the antiferromagnetic spintronic oscillator.
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1134%2FS1063785020100272/MediaObjects/11455_2020_3610_Fig1_HTML.gif)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1134%2FS1063785020100272/MediaObjects/11455_2020_3610_Fig2_HTML.gif)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1134%2FS1063785020100272/MediaObjects/11455_2020_3610_Fig3_HTML.gif)
Similar content being viewed by others
REFERENCES
V. Baltz, A. Manchon, M. Tsoi, T. Moriyama, T. Ono, and Y. Tserkovnyak, Rev. Mod. Phys. 90, 015005 (2018).
J. Walowski and M. Munzenverg, J. Appl. Phys. 120, 140901 (2016).
P. Nemec, M. Fiebig, T. Kampfrath, and A. V. Kimel, Nat. Phys. 14, 229 (2018).
T. Jungwirt, X. Marti, P. Wadley, and J. Wunderlich, Nat. Nanotechnol. 11, 231 (2016).
M. B. Jungfleisch, W. Zhang, and A. Hoffman, Phys. Lett. A 382, 865 (2018).
J. Železný, P. Wadley, K. Olejnik, A. Hoffmann, and H. Ohno, Nat. Phys. 14, 220 (2018).
E. Gomonay and V. Loktev, Low Temp. Phys. 40, 22 (2014).
E. A. Turov, A. V. Kolchanov, V. V. Men’shenin, I. F. Mirsaev, and V. V. Nikolaev, Symmetry and Physical Properties of Antiferromagnets (Fizmatlit, Moscow, 2001) [in Russian].
M. A. Shamsutdinov, I. Yu. Lomakina, V. N. Nazarov, A. T. Kharisov, and D. M. Shamsutdinov, Ferro- and Antiferromagnetodynamics. Nonlinear Vibrations, Waves and Solitons (Nauka, Moscow, 2009) [in Russian].
A. M. Kosevich, B. A. Ivanov, and A. S. Kovalev, Nonlinear Waves of Magnetization. Dynamic and Topological Solitons (Nauk. Dumka, Kiev, 1983) [in Russian].
R. Khymyn, I. Lisenkov, V. Tiberkevich, B. Ivanov, and A. Slavin, Sci. Rep. 7, 43705 (2017).
R. Khymyn, V. Tiberkevich, and A. Slavin, AIP Adv. 7, 055931 (2017).
R. Khymyn, I. Lisenkov, V. S. Tiberkevich, A. N. Slavin, and B. A. Ivanov, Phys. Rev. B 93, 224421 (2016).
U. Rohde, A. Poddar, and G. Böck, The Design of Modern Microwave Oscillators for Wireless Applications: Theory and Optimization (Wiley, NJ, 2005).
K. Mishagin and V. Shalfeev, Tech. Phys. Lett. 36, 1049 (2010).
A. A. Mitrofanov, A. R. Safin, and N. N. Udalov, Tech. Phys. Lett. 40, 571 (2014).
A. A. Mitrofanov, A. R. Safin, and N. N. Udalov, Tech. Phys. Lett. 41, 778 (2015).
A. Mitrofanov, A. Safin, N. Udalov, and M. Kapranov, J. Appl. Phys. 122, 123903 (2017).
S. Tamaru, H. Kubota, K. Yakushiji, S. Yuasa, and A. Fukushima, Sci. Rep. 5, 18134 (2015).
O. Sulymenko, O. Prokopenko, V. Tiberkevich, A. Slavin, B. Ivanov, and R. Khymyn, Phys. Rev. Appl. 8, 064007 (2017).
O. Sulymenko, O. Prokopenko, V. Tyberkevich, and A. Slavin, IEEE Magn. Lett. 9, 3104605 (2018).
B. A. Ivanov, J. Exp. Theor. Phys. 131 (2020, in press).
O. Gomonay, T. Jungwirth, and J. Sinova, Phys. Rev. B 98, 104430 (2018).
Funding
This study was supported by the Russian Foundation for Basic Research (projects nos. 18-37-20048, 18-29-27018, 18-07-00509, 18-57-76001, 18-57-16001, and 19-29-03015) and performed within the framework of state order to the Russian Foundation no. 0030-2019-0013.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
The authors declare that they have no conflict of interest.
Additional information
Translated by A. Sin’kov
Rights and permissions
About this article
Cite this article
Safin, A.R., Popov, P.A., Kalyabin, D.V. et al. Synthesizer of Discrete Frequency Spectrum Based on an Antiferromagnetic Spintronic Oscillator. Tech. Phys. Lett. 46, 1016–1019 (2020). https://doi.org/10.1134/S1063785020100272
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063785020100272