磁弹性超材料的调制不稳定性
Modulational instability of magnetoelastic metamaterials
摘要：
研究了最近设计的由弹性介导开口环谐振器（SRR）组成的磁弹性超材料的调制不稳定性。建立了有效的电路模型。然后研究了四种情况：SRR的二聚体、一维二聚体阵列、一维均匀阵列和二维分层阵列。研究发现，除了二聚体情况外，其他所有多体情况都可能存在调制不稳定性，这可能会扰乱均匀假设下的双稳态（如果有的话）。
英文摘要：
We study the modulational instability of recently designed magnetoelastic metamaterials composed of elastic-mediated split-ring resonators (SRR). An effective circuit model is developed. Then four cases are studied: a dimer of SRR, one-dimension (1D) dimerized array, 1D uniform array and two-dimension layered array. It is found that except for the dimer case, all the other many-body cases can present modulational instability which may disturb the bistability (if any) under uniform assumption.
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