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.
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)
