Magnetic rogue wave in a perpendicular anisotropic ferromagnetic nanowire with spin-transfer torque

Details Magnetic rogue wave in a perpendicular anisotropic ferromagnetic nanowire with spin-transfer torque Magnetic rogue wave in a perpendicular anisotropic ferromagnetic nanowire with spin-transfer torque

2011-08-16

arxiv.org/abs/1108.3252v2

Physics

Condensed Matter

Materials Science

5 figures

Scientific paper

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.

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