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

Yongjun Cao | Zendy; Guohong Yun | Zendy; Narsu | Zendy

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

Author(s) -

Yongjun Cao,

Guohong Yun,

Narsu

Publication year - 2011

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.60.077502

Subject(s) - plane wave expansion , condensed matter physics , plane wave expansion method , materials science , photonic crystal , field (mathematics) , plane wave , ferromagnetism , band gap , spin wave , electronic band structure , plane (geometry) , magnetic field , optics , physics , optoelectronics , quantum mechanics , geometry , mathematics , pure mathematics

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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