Spin-wave propagation in a microstructured magnonic crystal

被引：150
|
作者：
Chumak, A. V. [1 ,2 ]
Pirro, P. [1 ,2 ]
Serga, A. A. [1 ,2 ]
Kostylev, M. P. [3 ]
Stamps, R. L. [3 ]
Schultheiss, H. [1 ,2 ]
Vogt, K. [1 ,2 ]
Hermsdoerfer, S. J. [1 ,2 ]
Laegel, B. [1 ,2 ]
Beck, P. A. [1 ,2 ]
Hillebrands, B. [1 ,2 ]
机构：
[1] Tech Univ Kaiserslautern, Fachbereich Phys, Nano Bio Ctr, D-67663 Kaiserslautern, Germany
[2] Tech Univ Kaiserslautern, Forschungszentrum OPTIMAS, D-67663 Kaiserslautern, Germany
[3] Univ Western Australia, Sch Phys, Crawley, WA 6009, Australia
来源：
APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 26期
基金：
澳大利亚研究理事会;
关键词：
Brillouin spectra; crystal microstructure; energy gap; Permalloy; photonic crystals; spin waves; waveguides;
D O I：
10.1063/1.3279138
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Transmission of microwave spin waves through a microstructured magnonic crystal in the form of a Permalloy waveguide of a periodically varying width was studied experimentally and theoretically. The spin wave characteristics were measured by spatially resolved Brillouin light scattering microscopy. A rejection frequency band was clearly observed. The band gap frequency was controlled by the applied magnetic field. The measured spin-wave intensity as a function of frequency and propagation distance is in good agreement with a model calculation.
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页数：3
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