| Original Articles |
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Magnetic Properties and Nanostructures of FePtCu:C Thin Films with FePt Underlayers |
| JIN Ling-Fang1;YAN Ming-Lang2 |
| 1Department of Physics, Ningxia University, Yinchuan 7500212Department of Physics and Astronomy and Center for Materials Research and Analysis, University of Nebraska, Lincoln, NE 68588, USA |
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| Cite this article: |
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JIN Ling-Fang, YAN Ming-Lang 2007 Chin. Phys. Lett. 24 2628-2630 |
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Abstract Magnetic properties and nanostructures of FePtCu:C thin films with FePt
underlayers (ULs) are studied. The effect of FePt ULs on the orientation and magnetic properties of the thin films are investigated by adjusting FePt UL thicknesses from 2nm to 14nm. X-ray diffraction (XRD) scans reveal that the orientation of the films is dependent on FePt UL thickness. For a 5-nm FePtCu:C nanocomposite thin film with a 2-nm FePt UL, the coercivity is 6.5KOe, the correlation length is 59nm, the desired face-centred-tetragonal (fct) ordered structure [L10 phase] is formed and the c axis normal to the film
plane [(001) texture] is obtained. These results indicate that the better orientation and magnetic properties of the films can be tuned by decreasing the thickness of the FePt UL.
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61.46.+w
81.07.-b
75.50.Ss
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Received: 07 February 2007
Published: 16 August 2007
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| PACS: |
61.46.+w
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81.07.-b
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(Nanoscale materials and structures: fabrication and characterization)
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75.50.Ss
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(Magnetic recording materials)
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