No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.
Geometrical and physical conditions for skyrmion stability in a nanowire
1.X. Z. Yu, N. Kanazawa, W. Z. Zhang, T. Nagai, T. Hara, K. Kimoto, Y. Matsui, Y. Onose, and Y. Tokura, “Skyrmion flow near room temperature in an ultralow current density,” Nat. Commun. 3, 988 (2012).
2.S. Mühlbauer, B. Binz, F. Jonietz, C. Pfleiderer, A. Rosch, A. Neubauer, R. Georgii, and P. Böni, “Skyrmion lattice in a chiral magnet,” Science 323, 915–919 (2009).
3.S. Heinze, K. von Bergmann, M. Menzel, J. Brede, A. Kubetzka, R. Wiesendanger, G. Bihlmayer, and S. Blügel, “Spontaneous atomic-scale magnetic skyrmion lattice in two dimensions,” Nature Phys. 7, 713–718 (2011).
4.A. Tonomura, X. Yu, K. Yanagisawa, T. Matsuda, Y. Onose, N. Kanazawa, H. S. Park, and Y. Tokura, “Real-space observation of skyrmion lattice in helimagnet MnSi thin samples,” Nano Lett. 12, 1673–1677 (2012).
5.J. Sampiao, V. Cros, S. Rohart, A. Thiaville, and A. Fert, “Nucleation, stability and current-induced motion of isolated magnetic skyrmions in nanostructures,” Nature Nanotech. 8, 839–844 (2013).
8.Y. Zhou and M. Ezawa, “A reversible conversion between a skyrmion and a domain-wall pair in a junction geometry,” Nature Commun. 5, 4652 (2014).
, D. Chernyshenko
, M.-A. Bisotti
, W. Wang
, M. Albert
, R. L. Stamps
, and H. Fangohr
, “Finite size effects, stability, hysteretic behaviour, and reversal mechanism of skyrmionic textures in nanostructures,” arXiv:1312.7665v2
15.X. Z. Yu, Y. Onose, N. Kanazawa, J. H. Park, J. H. Han, Y. Matsui, N. Nagaosa, and Y. Tokura, “Real-space observation of a two-dimensional skyrmion crystal,” Nature 465, 901–904 (2010).
18.H. Du, J. P. DeGrave, F. Xue, D. Liang, W. Ning, J. Yang, M. Tian, Y. Zhang, and S. Jin, “Highly stable skyrmion state in helimagnetic MnSi nanowires,” Nano Lett. 14, 2026–2032 (2014).
19.A. B. Butenko, A. A. Leonov, U. K. Rößler, and A. N. Bogdanov, “Stabilization of skyrmion textures by uniaxial distortions in noncentrosymmetric cubic helimagnets,” Phys. Rev. B 82, 052403 (2010).
20.X. Z. Yu, N. Kanazawa, Y. Onose, K. Kimoto, W. Z. Zhang, S. Ishiwata, Y. Matsui, and Y. Tokura, “Near room-temperature formation of a skyrmion crystal in thin-films of the helimagnet FeGe,” Nature Mater. 10, 106–109 (2011).
21.M. N. Wilson, A. B. Butenko, A. N. Bogdanov, and T. L. Monchesky, “Chiral skyrmions in cubic helimagnet films: The role of uniaxial anisotropy,” Phys. Rev. B 89, 094411 (2014).
22.J.-W. Yoo, S.-J. Lee, J.-H. Moon, and K.-J. Lee, “Phase Diagram of a Single Skyrmion in Magnetic Nanowires,” IEEE Trans. Magn. 50, 1500504 (2014).
23.A. Vansteenkiste, J. Leliaert, M. Dvornik, M. Helsen, F. Garcia-Sanchez, and B. V. Waeyenberge, “The design and verification of MuMax3,” AIP Adv. 4, 107133 (2014).
24.S. Rohart and A. Thiaville, “Skyrmion confinement in ultrathin film nanostructures in the presence of Dzyaloshinskii–Moriya interaction,” Phys. Rev. B 88, 184422 (2013).
25.H. Y. Kwon, K. M. Bu, Y. Z. Wu, and C. Won, “Effect of anisotropy and dipole interaction on long-range order magnetic structures generated by Dzyaloshinskii–Moriya interaction,” J. Magn. Magn. Mater. 324, 2171–2176 (2012).
, E. Iacocca
, A. Awad
, R. K. Dumas
, F. C. Zhang
, H. B. Braun
, and J. Åkerman
, “Dynamical magnetic skyrmions,” arXiv:1404.3281
Article metrics loading...
Skyrmions are promising information carriers in the next-generation storage and transmission devices. Appropriate design of the nanowire that permits the flow of skyrmions is, however, seldom studied. In this work, the geometrical and material parameters have been varied to investigate the favorable conditions for skyrmion formation and stability in a nanowire through micromagnetic simulations. It is found that the minimum planar dimensions have to be satisfied in order to stabilize a skyrmion. Furthermore, the nanowire thickness is also important for establishing a skyrmion. The temperature effect in the competition between the perpendicular magnetic anisotropy (PMA) and the Dzyaloshinskii–Moriya interaction (DMI) limits the skyrmion formation in a well-defined phase. On the other hand, fine tuning of the exchange stiffness and the Gilbert damping constant sustain a specified portion of the phase diagram that allows for skyrmion formation. Our study also indicates that the stabilized magnetization pattern is dependent on the initial skyrmion state. These results shed light on the possible configurations that are suitable for the design of skyrmionic devices.
Full text loading...
Most read this month