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Interaction region of magnon-mediated spin torques and novel magnetic states |
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| Abstract: | We determine the region in which the magnon-mediated spin torques exist. This region can be controlled by the spin waves. In terms of stability analysis of magnetization dynamics based on the spin-wave background, we obtain the instability conditions of spin waves. With these results, we find the relationship between unstable regions and the formation of Akhmediev breather, Kuznetsov-Ma breather and rogue waves. We establish the phase diagram of some novel magnetic excitaions. |
| Keywords: | magnon-mediated spin torque instability breather phase diagram |
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