Bulk and surface magnetoinductive breathers in binary metamaterials - PubMed

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• PMID: 19905469
• DOI: 10.1103/PhysRevE.80.046605

Bulk and surface magnetoinductive breathers in binary metamaterials

M I Molina et al. Phys Rev E Stat Nonlin Soft Matter Phys. 2009 Oct.

Abstract

We investigate 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 used have different resonant frequencies caused by unequal slit sizes. We use the rotating-wave approximation and construct several types of breather excitations both for the energy-conserving as well as dissipative-driven case; we corroborate these approximate results trough numerically exact computations. We demonstrate that discrete breathers can appear spontaneously in the dissipative-driven system as a result of a fundamental instability.

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