One-Dimensional Magnonic Crystal With Cu Stripes for Forward Volume Spin Waves
Name
PhysRevApplied.11.014033.pdf
Size
1.7 MB
Format
Adobe PDF
Checksum (MD5)
4df994192baa5e1e561a72dc9cbef8aa
Author(s)
Shimada, Kei
Nakamura, Yuichi
Uchida, Hironaga
Inoue, Mitsuteru
Goto, Taichi
Date Issued
January 2019
Journal
Physical Review Applied
Publisher
American Physical Society
Citation
Goto, Taichi et al. "One-Dimensional Magnonic Crystal With Cu Stripes for Forward Volume Spin Waves." Physical Review Applied 11, 1 (January 2019): 014033
Version
Final published version
Abstract
A one-dimensional magnonic crystal for forward volume spin waves (FV SWs) is demonstrated using eight pairs of Cu stripes fabricated on a 1-mm wide × 14-mm long × 10.2-µm thick yttrium iron garnet (YIG) waveguide and a SW absorber of 30-nm-thick Au film. The development of this crystal is challenging due to strong spectral oscillations caused by edge reflections and process difficulties associated with YIG magnonic crystals. A magnonic band gap with a depth of −4.6 dB is observed at a frequency of 1.80 GHz for a FV SW excited by a 50-µm-wide microstrip line, which is in good agreement with simulation results using three-dimensional modeling in the radio frequency region. The obtained performance is illustrated by plotting the depth of the respective band gaps vs the pair number of the stripes. This value is compared with that obtained in previous studies.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1103/PhysRevApplied.11.014033
