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Nonlinear magnetoinductive waves and domain walls in composite metamaterials |
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| Authors: | Ilya V Shadrivov Alexander A Zharov Nina A Zharova Yuri S Kivshar |
| Institution: | aNonlinear Physics Centre, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia;bInstitute for Physics of Microstructures, Russian Academy of Sciences, Nizhny Novgorod 603950, Russia;cInstitute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod 603600, Russia |
| Abstract: | We describe novel physics of nonlinear magnetoinductive waves in left-handed composite metamaterials. We derive the coupled equations for describing the propagation of magnetoinductive waves, and show that in the nonlinear regime the magnetic response of a metamaterial may become bistable. We analyze modulational instability of different nonlinear states, and also demonstrate that nonlinear metamaterials may support the propagation of domain walls (kinks) connecting the regions with the positive and negative magnetization. |
| Keywords: | Nonlinear magnetoinductive waves Metamaterials Magnetization |
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