Bulk and surface magnetoinductive breathers in binary metamaterials

Details Bulk and surface magnetoinductive breathers in binary metamaterials Bulk and surface magnetoinductive breathers in binary metamaterials

2009-05-27

arxiv.org/abs/0905.4474v1

Nonlinear Sciences

Pattern Formation and Solitons

10 pages, 16 figures

Scientific paper

We study theoretically the existence of bulk and surface discrete breathers in a one-dimensional magnetic metamaterial comprised of a periodic binary array of split-ring resonators. The two types of resonators differ in the size of their slits and this leads to different resonant frequencies. In the framework of the rotating-wave approximation (RWA) we construct several types of breather excitations for both the energy-conserved and the dissipative-driven systems by continuation of trivial breather solutions from the anticontinuous limit to finite couplings. Numerically-exact computations that integrate the full model equations confirm the quality of the RWA results. Moreover, it is demonstrated that discrete breathers can spontaneously appear in the dissipative-driven system as a results of a fundamental instability.

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