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

作　　者：杨慧 云国宏 曹永军 

机构地区：[1]College of Physics and Electronic Information,Inner Mongolia Normal University [2]Inner Mongolia Key Lab of Nanoscience and Nanotechnology [3]College of Physical Science and Technology,Inner Mongolia University

出　　处：《Chinese Physics B》2014年第9期423-427,共5页中国物理B（英文版）

基　　金：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);the School Scientific Research Funds of Inner Mongolia Normal University of China(Grant Nos.2013YJRC007 and 2013ZRYB19)

摘　　要：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.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.

关 键 词：magnonic crystal band gap ROTATING optimizing 

分 类 号：O469[理学—凝聚态物理]