Spin waves in micro-structured yttrium iron garnet nanometer-thick films
Abstract
Here, we investigated the spin-wave propagation in a micro-structured yttrium iron garnet waveguide of 40 nm thickness. Utilizing spatially-resolved Brillouin light scattering microscopy, an exponential decay of the spinwave amplitude of 10 μm was observed. This leads to an estimated Gilbert damping constant of α = (8.79 ± 0.73) x 10$$-$$4, which is larger than damping values obtained through ferromagnetic resonance measurements in unstructured films. Furthermore, we compared the theoretically calculated spatial interference of waveguide modes to the spin-wave pattern observed experimentally by means of Brillouin light scattering spectroscopy.
- Authors:
-
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
- Colorado State Univ., Fort Collins, CO (United States). Dept. of Physics
- Northwestern Univ., Evanston, IL (United States). Dept. of Physics and Astronomy
- Publication Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); U.S. Army Research Laboratory; National Science Foundation (NSF)
- OSTI Identifier:
- 1357024
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Applied Physics
- Additional Journal Information:
- Journal Volume: 117; Journal Issue: 17; Journal ID: ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Jungfleisch, Matthias B., Zhang, Wei, Jiang, Wanjun, Chang, Houchen, Sklenar, Joseph, Wu, Stephen M., Pearson, John E., Bhattacharya, Anand, Ketterson, John B., Wu, Mingzhong, and Hoffmann, Axel. Spin waves in micro-structured yttrium iron garnet nanometer-thick films. United States: N. p., 2015.
Web. doi:10.1063/1.4916027.
Jungfleisch, Matthias B., Zhang, Wei, Jiang, Wanjun, Chang, Houchen, Sklenar, Joseph, Wu, Stephen M., Pearson, John E., Bhattacharya, Anand, Ketterson, John B., Wu, Mingzhong, & Hoffmann, Axel. Spin waves in micro-structured yttrium iron garnet nanometer-thick films. United States. https://doi.org/10.1063/1.4916027
Jungfleisch, Matthias B., Zhang, Wei, Jiang, Wanjun, Chang, Houchen, Sklenar, Joseph, Wu, Stephen M., Pearson, John E., Bhattacharya, Anand, Ketterson, John B., Wu, Mingzhong, and Hoffmann, Axel. Tue .
"Spin waves in micro-structured yttrium iron garnet nanometer-thick films". United States. https://doi.org/10.1063/1.4916027. https://www.osti.gov/servlets/purl/1357024.
@article{osti_1357024,
title = {Spin waves in micro-structured yttrium iron garnet nanometer-thick films},
author = {Jungfleisch, Matthias B. and Zhang, Wei and Jiang, Wanjun and Chang, Houchen and Sklenar, Joseph and Wu, Stephen M. and Pearson, John E. and Bhattacharya, Anand and Ketterson, John B. and Wu, Mingzhong and Hoffmann, Axel},
abstractNote = {Here, we investigated the spin-wave propagation in a micro-structured yttrium iron garnet waveguide of 40 nm thickness. Utilizing spatially-resolved Brillouin light scattering microscopy, an exponential decay of the spinwave amplitude of 10 μm was observed. This leads to an estimated Gilbert damping constant of α = (8.79 ± 0.73) x 10$-$4, which is larger than damping values obtained through ferromagnetic resonance measurements in unstructured films. Furthermore, we compared the theoretically calculated spatial interference of waveguide modes to the spin-wave pattern observed experimentally by means of Brillouin light scattering spectroscopy.},
doi = {10.1063/1.4916027},
journal = {Journal of Applied Physics},
number = 17,
volume = 117,
place = {United States},
year = {Tue Mar 24 00:00:00 EDT 2015},
month = {Tue Mar 24 00:00:00 EDT 2015}
}
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