%0 Journal Article
%T Band-structure calculations of two-dimesional magnonic crystals with plane-wave expansion method*<br>平面波展开法计算二维磁振子晶体带结构
%A Cao Yong-Jun
%A Yun Guo-Hong
%A Narsu
%A <br>曹永军
%A 云国宏
%A 那日苏
%J 物理学报
%D 2011
%I 
%X Recently, magnonic crystals which are the magnetic counterparts of photonic crystals or phononic crystals are growing into a hot area of research. In this paper, a plane-wave expansion method in the field of magnonic crystals is proposed. By using this method, band structures of two-dimensional magnonic crystals composed of ferromagnetic materials Fe and EuO are calculated. The numerical results show that the spin-wave gaps will be generated under a definite filling fraction ratio, and the effect of exchange field on the band structure is larger than that of other field in the effective field.
%K magnonic crystals
%K band gap
%K palne-wave expansion method<br>磁振子晶体
%K 带隙
%K 平面波展开法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=27C14E609A3E452C15D41DA384327F76&yid=9377ED8094509821&vid=BFE7933E5EEA150D&iid=DF92D298D3FF1E6E&sid=77F318677278D6F4&eid=77F318677278D6F4&journal_id=1000-3290&journal_name=物理学报&referenced_num=1&reference_num=6