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Lee, Ki-Suk
Creative Lab. for Advanced Spin Systems (CLASS)
Research Interests
  • Magnetism, spintronics, spin dynamics, rare-earth free magnet

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A gigahertz-range spin-wave filter composed of width-modulated nanostrip magnonic-crystal waveguides

Cited 45 times inthomson ciCited 20 times inthomson ci
Title
A gigahertz-range spin-wave filter composed of width-modulated nanostrip magnonic-crystal waveguides
Author
Kim, Sang-KoogLee, Ki-SukHan, Dong-Soo
Keywords
Band gaps; Crystal waveguides; Information transmission; Nanostrips; Narrow bands; One step; One-dimensional; Practical implementation; Processing device; Thin-films; Translation symmetry
Issue Date
2009-08
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.95, no.8, pp.1 - 3
Abstract
We found a robust magnonic-crystal waveguide structure for use as an efficient gigahertz-range spin-wave filter that passes only spin waves of chosen narrow band frequencies and filters out the other frequencies. The structure consists of the serial combinations of various width modulations with different periodicities and motifs in planar-patterned thin-film nanostrips composed of a single soft magnetic material. The observed magnonic band gaps result from both the translation symmetry of the one-dimensional width modulation and the higher-quantized width-mode spin waves excited from scattering at the periodic edge-steps of the width modulation. This work brings us one step closer to practical implementations of spin waves in information transmission and processing devices.
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DOI
10.1063/1.3186782
ISSN
0003-6951
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MSE_Journal Papers
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