| Magnetic Properties and Nanostructures of FePtCu：C Thin Films with FePt Underlayers |
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| 引用本文： | 金玲芳 阎明朗. Magnetic Properties and Nanostructures of FePtCu：C Thin Films with FePt Underlayers[J]. 中国物理快报, 2007, 24(9): 2628-2630 |
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| 作者姓名： | 金玲芳 阎明朗 |
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| 作者单位： | [1]Department of Physics, Ningxia University, Yinchuan 750021 [2]Department of Physics and Astronomy and Center for Materials Research and Analysis, University of Nebraska, Lincoln, NE 68588, USA |
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| 基金项目： | Supported by NSF-MRSEC, INSIC, CMRA and China Scholarship Council. |
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| 摘 要： | Magnetic properties and nanostructures of FePtCu：C thin films with FePt underlayers （ULs） are studied. The effect of FePt ULs on the orlentation 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.S KOe, the correlation length is 59 nm, the desired face-centred-tetragonal （fct） ordered structure [Llo phase] is formed and the c axis normal to the film plane [（001） texture] is obtained. These results indicate that the beffer orientation and magnetic properties of the films can be tuned by decreasing the thockness of the FePt UL.
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| 关 键 词： | FePtCu：C FePt 磁性 薄膜 底基层 |
| 收稿时间： | 2007-02-07 |
| 修稿时间： | 2007-02-07 |
Magnetic Properties and Nanostructures of FePtCu:C Thin Films with FePt Underlayers |
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| JIN Ling-Fang,YAN Ming-Lang. Magnetic Properties and Nanostructures of FePtCu:C Thin Films with FePt Underlayers[J]. Chinese Physics Letters, 2007, 24(9): 2628-2630 |
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| Authors: | JIN Ling-Fang YAN Ming-Lang |
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| Affiliation: | 1 Department of Physics, Niag-xia University, Yinchuan 750021 ;2 Department of Physics and Astronomy and Center for MateriMs Research and Analysis, University of Nebraska, Lincoln, NE 68588, USA |
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| Abstract: | Magnetic properties and nanostructures of FePtCu:C thin films with FePtunderlayers (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 filmplane [(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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| Keywords: | 61.46.+w 81.07.-b 75.50.Ss |
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