| Presentation | 2000/11/7 Properties of Magnetic Metal-Carbon Nanocomposite Films Prepared by Pulsed Filtered Vacuum Arc Deposition M.F. Chiah, S.P. Wong, W.Y. Cheung, N. Ke, H. Wang, H. Liu, G.H. Wen, X.X. Zhang, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have employed the pulsed filtered vacuum arc deposition technique to prepare Co-C and Fe-C nanocomposite films of various carbon compositions. Thermal annealing was performed in vacuum at various temperatures. Characterization of the as-deposited and annealed films was performed using various techniques including x-ray photoelectron spectroscopy, transmission electron microscopy(TEM), atomic force microscopy(AFM), magnetic force microscopy(MFM)and magnetic measurements. The TEM results showed that the as-deposited Co-C films generally consist of amorphous Co nanograins of several nanometer in size encapsulated by amorphous carbon. After annealing, the Co grains become crystallized and were encapsulated by graphite carbon. Depending on the composition and annealing conditions, these films show very different magnetic properties. Superparamagnetism was observed in some of these films. For a sample with a composition of Co_36C_64, the blocking temperature was determined to be 12K. Soft ferromagnetic properties with a coercivity of 2 or 3 Oe were observed for the as-deposited low Co composition films and they become magnetically harder after annealing. The domain structures of these Co-C and Fe-C films were observed by MFM and they showed different features. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Co-C granular films / Fe-C granular films / superparamagnetism / magnetic domain structures / MFM |
| Paper # | MR2000-43 |
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| Conference Information | |
| Committee | MR |
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| Conference Date | 2000/11/7(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Magnetic Recording (MR) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Properties of Magnetic Metal-Carbon Nanocomposite Films Prepared by Pulsed Filtered Vacuum Arc Deposition |
| Sub Title (in English) | |
| Keyword(1) | Co-C granular films |
| Keyword(2) | Fe-C granular films |
| Keyword(3) | superparamagnetism |
| Keyword(4) | magnetic domain structures |
| Keyword(5) | MFM |
| 1st Author's Name | M.F. Chiah |
| 1st Author's Affiliation | Department of Electronic Engineering and Materials Science and Technology Research Center, The Chinese University of Hong Kong, Shatin, N.T.() |
| 2nd Author's Name | S.P. Wong |
| 2nd Author's Affiliation | Department of Electronic Engineering and Materials Science and Technology Research Center, The Chinese University of Hong Kong, Shatin, N.T. |
| 3rd Author's Name | W.Y. Cheung |
| 3rd Author's Affiliation | Department of Electronic Engineering and Materials Science and Technology Research Center, The Chinese University of Hong Kong, Shatin, N.T. |
| 4th Author's Name | N. Ke |
| 4th Author's Affiliation | Department of Electronic Engineering and Materials Science and Technology Research Center, The Chinese University of Hong Kong, Shatin, N.T. |
| 5th Author's Name | H. Wang |
| 5th Author's Affiliation | Department of Electronic Engineering, The Chinese University of Hong Kong, Hong Kong, China, and Institute of Thin Films and Nanomaterials, Department of Mathematics and Physics, Wuyi University |
| 6th Author's Name | H. Liu |
| 6th Author's Affiliation | Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay |
| 7th Author's Name | G.H. Wen |
| 7th Author's Affiliation | Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay |
| 8th Author's Name | X.X. Zhang |
| 8th Author's Affiliation | Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay |
| Date | 2000/11/7 |
| Paper # | MR2000-43 |
| Volume (vol) | vol.100 |
| Number (no) | 422 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |