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Ferromagnetic Resonance Behaviors of Integrated CoPdAlO Magnetic Film on Coplanar Waveguide

Title
Ferromagnetic Resonance Behaviors of Integrated CoPdAlO Magnetic Film on Coplanar Waveguide
Author
김종렬
Keywords
Magnetic film devices; Permeability; Noise suppression; Ferromagnetic resonance
Issue Date
2007-12
Publisher
KOREAN PHYSICAL SOC
Citation
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v. 51, Page. 2026~2030
Abstract
CoPdAlO magnetic films, whose ferromagnetic resonance (FMR) frequency was 4.2 GHz, were deposited on a coplanar waveguide (CPW) by using a RF magnetron sputtering method and were then patterned with a size of 2000 mu m imes 50 mu m imes 2 mu m (l imes w imes t ). In the case of the patterned magnetic films on CPW, the calculated and the measured FMR frequencies were shifted to around 7 GHz, and the measured characteristic impedance of the CPW was also changed by around 7 GHz. In addition, the propagation wavelength shortening effect was enhanced by about 17 \% up to 7 GHz compared with that of the CPW without magnetic film. These results show that patterned magnetic films can be used as band-pass filters and broad-band EMI noise filters in the RF and the microwave regions.
URI
http://www.jkps.or.kr/journal/view.html?uid=9013&vmd=Fullhttp://repository.hanyang.ac.kr/handle/20.500.11754/107523
ISSN
0374-4884; 1976-8524
DOI
10.3938/jkps.51.2026
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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