Piezoelectric–piezomagnetic multilayer with simultaneously negative permeability and permittivity

Liu, H.; Zhu, S. N.; Zhu, Y. Y.; Chen, Y. F.; Ming, N. B.; Zhang, X.
March 2005
Applied Physics Letters;3/7/2005, Vol. 86 Issue 10, p102904
Academic Journal
We study the propagation of an electromagnetic (EM) wave in piezoelectric–piezomagnetic multilayers, in which the incident EM wave excites high frequency acoustic waves and couples strongly with them through piezoelectric and piezomagnetic effects, creating dielectric polariton and magnetic polariton simultaneously. The dispersion abnormality appears at some frequency ranges where simultaneous negative permittivity and permeability can be achieved. Theoretical analysis and numerical simulation proved that this structure forms a kind of “left-handed” material.


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