Magnetic rogue wave in a perpendicular anisotropic ferromagnetic nanowire with spin-transfer torque
arXiv:1108.3252 · doi:10.1016/j.aop.2012.05.012
Abstract
We present the current controlled motion of dynamic soliton embedded in spin wave background in ferromagnetic nanowire. With the stronger breather character we get the novel magnetic rogue wave and clarify its formation mechanism. The generation of magnetic rogue wave is mainly arose from the accumulation of energy and magnons toward to its central part. We also observe that the spin-polarized current can control the exchange rate of magnons between envelope soliton and background, and the critical current condition is obtained analytically. Even more interesting is that the spin-transfer torque plays the completely opposite role for the cases of below and above the critical value.
5 figures
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Cited by in corpus (4)
- The Landau-Lifshitz equation, the NLS, and the magnetic rogue wave as a by-product of two colliding regular "positons"
- Riemann-Hilbert problem for the modified Landau-Lifshitz equation with nonzero boundary conditions
- Optical amplification and transmission of attenuated multi-soliton based on spectral characteristics of Akhmediev breather
- Current-induced instability of domain walls in cylindrical nanowires