Bandgap Parameters of Dipolar-Dominated Bicomponent Magnonic Crystals

被引：6
|
作者：
Lin, C. S. [1 ]
Lim, H. S. [1 ]
Wang, Z. K. [1 ]
Ng, S. C. [1 ]
Kuok, M. H. [1 ]
机构：
[1] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2011年 / 47卷 / 10期
关键词：
Bandgap; magnonic crystal; magnonics; spin wave;
D O I：
10.1109/TMAG.2011.2148700
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Employing numerical calculations and our recently developed analytical approach, we calculate the lowest bandgaps in one-dimensional magnonic crystals comprising periodic arrays of submicron stripes of two alternating magnetic materials. Using suitable approximations, we simplify and recast the analytic expressions for their bandgap width and center frequency, formulated in our recent study, into a form that provides insight into the dependence of the bandgap on geometric and magnetic properties of the magnonic crystals. Calculations based on the simplified analytical formulae accord well with numerical calculations.
引用
收藏
页码：2954 / 2956
页数：3
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