Permeability measurements of various magnetic films by a broad band CPW technique
- Title
- Permeability measurements of various magnetic films by a broad band CPW technique
- Author
- 김종렬
- Issue Date
- 2006-00
- Publisher
- IEEE
- Citation
- INTERMAG 2006 - IEEE International Magnetics Conference, article no. 4262274, Page. 841-841
- Abstract
- Increasing the frequency of electro-magnetic devices has been continuously pushing magnetic materials to operate over several GHz ranges.The permeability measurement of magnetic thin films were performed by both a broadband CPW and a network analyzer (0.1 -20 GHz) and Ryowa permeameter based on a single turn strip loop. The CPW was designed to have near 50Omega impedance, matching the network analyzer and cables. the permeabilities of a CoNbZr films with a film thickness of 2 mum measured by the CPW broad band method. The microstructure of a FeCoNiB thin film observed by transmission electron microscopy.The demagnetization field caused by the signal line can not be a dominant factor in the FeCoNiB film. These two results show that the broad band CPW method is a very effective way to obtain the permeability of magnetic thin films over 10 GHz but requires the careful data analysis including the microstructural characteristics and dimension of magnetic films.
- URI
- https://ieeexplore.ieee.org/document/4262274https://repository.hanyang.ac.kr/handle/20.500.11754/182999
- ISSN
- 2150-4598;2150-4601
- DOI
- 10.1109/INTMAG.2006.374872
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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