Related dynamics of magnetic vortexes in five-layer spintransfer nanooscillator

Cover Page

Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription or Fee Access

Abstract

The influence of spin-polarized current and the number of magnetic layers on the coupled dynamics of vortices in small-diameter spin-transfer nanooscillators has been studied. Using the software package for micromagnetic modeling SpinPM, the dependence of the frequency on the current magnitude of the currents at which a stationary mode of coupled oscillations of three vortices is observed is found. For the case of three identical magnetic layers, the possibility of implementing different scenarios of coupled vortex dynamics is shown. It was found that numerical calculations for the case of three magnetic layers yield frequencies of stationary coupled oscillations that are lower than those predicted by theory. Built on effective equations for the coordinates of the vortex center.

Full Text

Restricted Access

About the authors

E. G. Ekomasov

Ufa University of Science and Technology

Email: georgij.antonow@yandex.ru
Russian Federation, st. Zaki Validi, 32, Ufa, 450076

D. F. Neradovsky

Tyumen State University

Email: georgij.antonow@yandex.ru
Russian Federation, st. Volodarskogo, 6, Tyumen, 625003

G. I. Antonov

Ufa University of Science and Technology

Author for correspondence.
Email: georgij.antonow@yandex.ru
Russian Federation, st. Zaki Validi, 32, Ufa, 450076

V. V. Filippova

Ufa University of Science and Technology

Email: georgij.antonow@yandex.ru
Russian Federation, st. Zaki Validi, 32, Ufa, 450076

References

  1. Звездин К.А., Екомасов Е.Г. // ФММ. 2022. Т. 123. № 3. С. 219.
  2. Wu J., Carlton D., Park J., Meng Y. // Nature Phys. 2011. V. 7. P. 303. doi: 10.1038/nphys1891.
  3. Mironov V.L., Gribkov B.A., Fraerman A.A. et al. // J. Magn. Magn. Mater. 2007. V. 312. P. 153. doi: 10.1016/j.jmmm.2006.09.032.
  4. Guslienko K. Yu., Han X.F., Keavney D.J. et al. // Phys. Rev. Lett. 2006. V. 96. № 6. P. 067205. doi: 10.1103/PhysRevLett.96.067205.
  5. Bohlens S., Krüger B., Drews A., Bolte M. // Appl. Phys. Lett. 2008. V. 93. № 14. P. 142508. doi: 10.1063/1.2998584 6.
  6. Nakano K., Chiba D., Ohshima N. et al. // Appl. Phys. Lett. 2011. V. 99. № 26. P. 262505. doi: 10.1063/1.3673303 56.
  7. Grollier J., Querlioz D., Camsari K.Y. et al. // Neuromorphic Spintronics. Nat Electron. 2020. V. 3. P. 360. doi: 10.1038/s41928-019-0360-9.
  8. Звездин А.К., Хвальковский А.В., Звездин К.А. // Успехи физ. наук. 2008. Т. 178. № 4. C. 436. doi: 10.1070/PU2008v051n04ABEH006508.
  9. Dussaux A., Georges B., Grollier J. et al. // Nature Commun. 2010. V. 1. P. 8. doi: 10.1038/ncomms1006
  10. Khvalkovskiy A.V., Grollier J., Dussaux A. et al. // Phys. Rev. B. 2009. V. 80. № 14. P. 140401. doi: 10.1103/PhysRevB.80.140401.
  11. Gaididei Y., Kravchuk V., Sheka D. // Int. J. Quantum Chemistry. 2010. V. 110. P. 8397. doi: 10.1002/qua.22253.
  12. Ivanov B.A., Zaspel E. // Phys. Rev. Lett. 2007. V. 99. № 24. P. 247208. doi: 10.1103/PhysRevLett.99.247208.
  13. Усов Н.А., Песчаный С.Е. // ФММ. 1994. Т. 78. № 6. С. 13.
  14. Guslienko K. Yu., Buchanan K.S., Bader S.D., Novosad V. // Appl. Phys. Lett. 2005. V. 86. № 22. P. 223112. doi: 10.1063/1.1929078.
  15. Locatelli N., Naletov V.V., Grollier J. et al. // Appl. Phys. Lett. 2011. V. 98. № 6. P. 062501. doi: 10.1063/1.3553771.
  16. Cherepov S.S., Koop B.C., Galkin A.Y. et al. // Phys. Rev. Lett. 2012. V. 109. № 9. P. 097204. doi: 10.1103/PhysRevLett.109.139902.
  17. Locatelli N., Ekomasov A.E., Khvalkovskiy A.V. et al. // Appl. Phys. Lett. 2013. V. 102. № 6. P. 062401. doi: 10.1063/1.4790841
  18. Sluka V., Kakay A., Deac A.M. et al. // Nat. Commun. 2015. V. 6. P. 6409. doi: 10.1038/ncomms7409.
  19. Locatelli N., Lebrun R., Naletov V. et al. // IEEE Trans. 2015. V. MAG-51. № 8. Article No. 4300206. doi: 10.1109/TMAG.2015.2414903.
  20. Holmgren E., Bondarenko A., Ivanov B.A., Korenivski V. // Phys. Rev. B. 2018. V. 97. № 9. P. 094406. doi: 10.1103/Phys. rev.B.97.094406.
  21. Anam Hanif, Arbab Abdur Rahim, Husnul Maab // Physica B: Cond. Matt. 2023. V. 668. ArticleNo. 415203. doi: 10.1016/j.physb.2023.415203.
  22. Екомасов А.Е., Степанов С.В., Звездин К.А., Екомасов Е.Г.//ФММ. 2017. Т. 118. № 4. С. 345. doi: 10.7868/S0015323017020024
  23. Степанов С.В., Екомасов А.Е., Звездин К.А., Екомасов Е.Г.//ФТТ. 2018. Т. 60. № 6. С. 1045.
  24. doi: 10.21883/FTT.2018.06.45974.22M
  25. Ekomasov A.E., Stepanov S.V., Zvezdin K.A., Ekomasov E.G. // J. Magn. Magn.Mater. 2019. V. 471. P. 513. DOI: org/10.1016/j.jmmm.2018.09.077.
  26. Екомасов Е.Г., Степанов С.В., Назаров и др.// Письма в ЖТФ. 2021. Т. 47. № 17. С. 26.
  27. Stepanov S.V., Nazarov V.N., Zvezdin K.A., Ekomasov E.G. // J. Magn. Magn. Mater. 2022. V. 562. P. 169758. doi: 10.1016/j.jmmm.2022.169758.
  28. Lacoste B., Marins de Castro M., Devolder T. et al. // Phys. Rev. B. 2014. V. 90. № 22. P. 224404. doi: 10.1103/PhysRevB.90.224404.
  29. Zaspel C.E., Galkina E.G., Ivanov B.A. // Phys. Rev. Appl. 2019. V. 12. № 4. P. 044019. doi: 10.1103/PhysRevApplied.12.044019.
  30. Chun-Yeol You // J. Magnetics. 2012. V. 17. P. 73. doi: 10.4283/jmag.2012.17.2.073.

Supplementary files

Supplementary Files
Action
1. JATS XML
Download
2. Fig. 1. Schematic representation of a multilayer columnar nanostructure.

Download (8KB)
Indexing metadata
3. Fig. 2. Trajectories of the vortex core motion in the upper layer, obtained for the 15/15/15 case at a current of 28.27 mA for the time intervals: 0…25 (a), 25…50 (b), 50…75 (c), 75…100 ns (d); the time moments are indicated: 0 (1), 25 (2), 50 (3), 75 (4) and 100 ns (5).

Download (115KB)
Indexing metadata
4. Fig. 3. Trajectories of the vortex core motion in the middle layer, obtained for the case of 15/15/15 at a current of 28.27 mA for the time intervals: 0…25 (a), 25…50 (b), 50…75 (c), 75…100 ns (d); the time moments are indicated: 0 (1), 25 (2), 50 (3), 75 (4) and 100 ns (5).

Download (114KB)
Indexing metadata
5. Fig. 4. Trajectories of the vortex core motion in the lower layer, obtained for the 15/15/15 case at a current of 28.27 mA for the time intervals: 0…25 (a), 25…50 (b), 50…75 (c), 75…100 ns (d); the time moments are indicated: 0 (1), 25 (2), 50 (3), 75 (4) and 100 ns (5).

Download (109KB)
Indexing metadata
6. Fig. 5. Dependences of the frequency of stationary oscillations of vortices on the current value for a three-layer structure: three magnetic vortices move with the same frequency (1), two magnetic vortices move with the same frequency (2), the vortex escapes beyond the edge in the third magnetic layer (3); for a two-layer structure: the oscillation frequency for the first (4) and second (5) layers.

Download (10KB)
Indexing metadata

Copyright (c) 2024 Russian Academy of Sciences