期刊
IEEE MAGNETICS LETTERS
卷 7, 期 -, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LMAG.2016.2616105
关键词
Magnetodynamics; yttrium iron garnet film; pulsed laser deposition; coplanar waveguide; spin wave; Gilbert damping
资金
- Polish-Swiss Research Program [NANOSPIN PSRP-045/2010]
- Deusche Forschungsgemeinschaft [SSP 1538, AN762/1]
- National Natural Science Foundation of China [11444005, 61475031, 51302027, 51522204]
- Ministry of Science and Technology of China MOST [2016YFA0300802]
- Fundamental Research Funds for the Central Universities [ZYGX2014Z001]
- Science Foundation for Youths of Sichuan Province [2015JQO014]
- Beijing Advanced Innovation Center for Big Data and Brain Computing, Beihang University
Yttrium iron garnet (YIG) has been widely used in spin wave studies thanks to its low Gilbert damping constant. However, most high-quality YIG films are grown on gadolinium gallium garnet (GGG) substrate, which makes it difficult to integrate with existing semiconductor technology. We show spin wave excitation in a nanometer-thick YIG micro-channel on silicon substrate. The YIG is grown by pulsed laser deposition (PLD) in high-purity oxygen followed by rapid thermal annealing at 800 degrees C after deposition. Using meander coplanar waveguides at submicrometer scale, spin waves with wavelength down to 1 mu m are excited. By measuring the linewidth of the spin wave reflection spectra, a Gilbert damping constant alpha = 1.9 x 10(-3) was obtained.
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