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中文摘要：
磁振子晶体是光子晶体或声子晶体在磁性材料领域内的替代品，是近来的一个研究热点．本文提出了磁振子晶体领域内的一种平面波展开法，其较传统的平面波展开法能节约一半以上的计算时间．采用此方法，数值汁箅了由Fe／EuO二种铁磁材料构成的二维磁振子晶体带结构．数值计算结果表明，在一定的体积填充率下，有自旋波带隙的出现；影响磁振子晶体带隙结构形成的主要因素是有效场中的交换作用场，其他作用场的影响相埘很小．
英文摘要：
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.
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Existing Form of Zinc Oxide and Phase Transformation for Zinc Oxide Encapsulated in Mesoporous Silic
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