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| Effect of Deposition Thickness on Structure and Magnetic Properties of L10-FePd Granular Film |
| LIU Tao1, MA Lei1, 2, ZHAO Shiqian1, MA Dongdong1, LI Lin1, 2, CHENG Gang1, 2
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1 School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004;
2 Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004 |
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Abstract The FePd nanoparticle films with different thickness were deposited on glass substrates by direct current magnetron sputtering at room temperature. The structure and magnetic properties were characterized by XRD, SEM, AFM and VSM. The results indicated that (002) superlattice diffraction peaks in X-ray diffraction pattern could be seen in films annealed at 550 ℃ for 3 h, which suggests that tetragonal ordered structure formed in annealed films. With the decrease of film thickness, the ordering degree of FePd film increased gradually. When the film thickness was 47 nm, the coercivity and magnetic energy could reach 3.5 kOe and 17.6 MGOe respectively, and remanence ratio could keep about 0.94. The disorder-order transition temperature of FePd film was evidently reduced and its magnetic properties was improved.
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Published: 25 February 2018
Online: 2018-02-25
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2018, Vol. 32 
