Effects of rotating noncircular scatterers on spin-wave band gaps of two-dimensional magnonic crystals

doi:10.1088/1674-1056/23/9/097501

Abstract Using the plane-wave expansion method, the spin-wave band structures of two-dimensional magnonic crystals consisting of square arrays of different shape scatterers are calculated numerically, and the effects of rotating rectangle and hexagon scaterers on the gaps are studied, respectively. The results show that the gaps can be substantially opened and tuned by rotating the scatterers. This approach should be helpful in designing magnonic crystals with desired gaps.

Keywords: magnonic crystal band gap rotating optimizing

Received: 25 December 2013
Revised: 25 March 2014
Accepted manuscript online:

PACS:	75.30.Ds	(Spin waves)
	75.50.Tt	(Fine-particle systems; nanocrystalline materials)
	75.75.-c	(Magnetic properties of nanostructures)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11264028 and 11072104), the Natural Science Foundation of Inner Mongolia Autonomous Region of China (Grant No. 2012MS0114), and the School Scientific Research Funds of Inner Mongolia Normal University of China (Grant Nos. 2013YJRC007 and 2013ZRYB19).

Corresponding Authors: Yun Guo-Hong
E-mail: ndghyun@imu.edu.cn;phyjcao@imnu.edu.cn

Cite this article:

Yang Hui (杨慧), Yun Guo-Hong (云国宏), Cao Yong-Jun (曹永军) Effects of rotating noncircular scatterers on spin-wave band gaps of two-dimensional magnonic crystals 2014 Chin. Phys. B 23 097501

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Effects of rotating noncircular scatterers on spin-wave band gaps of two-dimensional magnonic crystals

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