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Effect of Varying Dzyaloshinskii-Moriya Interaction on the Bistable Nano-Scale Soliton Switching |
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| Authors: | L. Kavitha M. Saravanan V. Senthilkumar D. Gopi |
| Affiliation: | 1. Department of Physics, Periyar University, Salem-636 011, Tamilnadu, India;2. The Abdus Salam International Centre for Theoretical Physics, Trieste, Italy;3. Center for Nanoscience and Nanotechnology, Periyar University, Salem-636 011, Tamilnadu, India;4. Department of Chemistry, Periyar University, Salem-636 011, Tamilnadu, India |
| Abstract: | The effect of Dzyaloshinskii-Moriya (D-M) interaction on the bistable nano-scale soliton switching offers the possiblity of developing a new innovative approach for data storage technology. The dynamics of Heisenberg ferromagnetic spin system is expressed in terms of generalized inhomogeneous higher order nonlinear Schrödinger (NLS) equation. The bistable soliton switching in the ferromagnetic medium is established by solving the associated coupled evolution equations for amplitude and velocity of the soliton using the fourth order Runge-Kutta method numerically. |
| Keywords: | solitons magnetization reversal mechanisms perturbation theory exchange interactions |
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