|Magnon band structure and magnon density in one-dimensional magnonic crystals|
|R. K. Qiu; T. Huang; Z. D. Zhang
|Source Publication||Journal of Magnetism and Magnetic Materials
|Abstract||By using Callen's Green's function method and the Tyablikov and Anderson-Callen decoupling approximations, we systematically study the magnon band structure and magnon density perpendicular to the super lattice plane of one-dimensional magnonic crystals, with a superlattice consisting of two magnetic layers with ferromagnetic (FM) or antiferromagnetic (AFM) interlayer exchange coupling. The effects of temperature, interlayer coupling, anisotropy and external magnetic held On the magnon-energy band and magnon density in the K-x-direction are investigated in three situations: a) the magnon band of magnetic superlattices with FM interlayer coupling, b) separate and c) overlapping magnon bands of magnetic superlattices with AFM interlayer coupling. In the present work, a quantum approach is developed to study the magnon band structure and magnon density of magnonic crystals and the results are beneficial for the design of magnonic-crystal waveguides or gigahertz-range spin-wave filters. (C) 2014 Elsevier B.V. All rights reserved.|
; huang, te] shenyang univ technol, shenyang 110870, peoples r china. [zhang, zhi-dong] chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china.
; qiu, rk (reprint author), shenyang univ technol, shenyang 110870, peoples r china.
|Keyword||One-dimensional Magnonic Crystal
Separate BAnd And
Overlapping Magnon Band
Fm Or aFm Interlayer Exchange Coupling
Periodic Elastic Composites
R. K. Qiu,T. Huang,Z. D. Zhang. Magnon band structure and magnon density in one-dimensional magnonic crystals[J]. Journal of Magnetism and Magnetic Materials,2014,368:180-190.
R. K. Qiu,T. Huang,&Z. D. Zhang.(2014).Magnon band structure and magnon density in one-dimensional magnonic crystals.Journal of Magnetism and Magnetic Materials,368,180-190.
R. K. Qiu,et al."Magnon band structure and magnon density in one-dimensional magnonic crystals".Journal of Magnetism and Magnetic Materials 368(2014):180-190.
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