Band-structure calculations of two-dimesional magnonic crystals with plane-wave expansion method*

Yong-jun Cao, Guo-Hong Yun, Narsu
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引用次数: 4

Abstract

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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用平面波展开法计算二维磁晶体的能带结构*
近年来,磁振子晶体作为光子晶体或声子晶体的磁性对应物逐渐成为研究的热点。本文提出了一种在磁晶体领域中的平面波展开方法。用该方法计算了由铁磁材料Fe和EuO组成的二维磁子晶体的能带结构。数值结果表明,在一定的填充分数比下会产生自旋波隙,且有效场中交换场对能带结构的影响大于其他场。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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期刊介绍: "Information Recording Materials" was founded in 1978. It is an academic scientific journal approved by the State Administration of Press and Publication, supervised by China Lucky Group Co., Ltd., and sponsored by Beijing Lucky Technology Co., Ltd. "Information Recording Materials" closely follows the national information technology industry development strategy, comprehensively and timely reports the scientific theoretical research and technological development results of information recording materials at home and abroad, and promotes the research and development of new theories, new technologies, new processes, new materials, and new products. This journal vigorously promotes the development of the information industry, provides a good communication platform for scholars and researchers in the information technology industry, promotes the development of information and materials disciplines and applied technologies, and accelerates my country's informatization construction.
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