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
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
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.
刘涛, 马垒, 赵世谦, 马冬冬, 李林, 成钢. 沉积厚度对L10-FePd颗粒膜结构和磁性能的影响[J]. 《材料导报》期刊社, 2018, 32(4): 525-527.
LIU Tao, MA Lei, ZHAO Shiqian, MA Dongdong, LI Lin, CHENG Gang. Effect of Deposition Thickness on Structure and Magnetic Properties of L10-FePd Granular Film. Materials Reports, 2018, 32(4): 525-527.
1 Weisheit M, F?hler S, Marty A, et al. Electric field-induced modification of magnetism in thin-film ferromagnets[J].Science,2007,315(5810):349. 2 Shen C Y, Chang H W, Yuan F T, et al. Energy product enhancement of FePt films by underlayering with Ti, Zr, and Hf[J].Applied Surface Science,2014,313:755. 3 Chiu J C, Wen W C, Wang L W, et al. Effects of B additions in FePt and FePt∶C films[J].Journal of Applied Physics,2014,115(17):17B713. 4 Ma L, Liu Z W, Yu H Y, et al. High coercivity FePtSiN films with L10-FePt nanoparticles embedded in a Si-rich matrix[J].IEEE Transactions on Magnetics,2011,47(10):3505. 5 Li Baohe, Hwang Pol, Yang Tao, et al. Lowering of ordering temperature for L10-FePt in FePt/Cu multilayers[J].Acta Metallurgica Sinica,2005,41(6):659(in Chinese). 李宝河,黄阀,杨涛,等.FePt/Cu多层膜化降低L10-FePt有序化温度[J].金属学报,2005,41(6):659. 6 Oniku O D, Qi B, Arnold D P. Electroplated L10 CoPt thick-film permanent magnets[J].Journal of Applied Physics,2014,115(17):17E521.7 Ichitsubo T, Takashima S, Matsubara E, et al. Control of c-axis orientation of L10-FePd in dual-phase-equilibrium FePd/Fe thin films[J].Journal of Applied Physics,2011,109:033513. 8 Chang Y C, Hsiao S N, Liu S H, et al. Influence of stoichiometry and growth temperature on the crystal structure and magnetic pro-perties of epitaxial L10 Fe-Pd (001) films[J].Journal of Applied Physics,2014,115(17):17A740. 9 Kohda M, Iimori S, Ohsugi R, et al. Structural and magnetic pro-perties of L10-FePd/MgO films on GaAs and InP lattice mismatched substrates[J].Applied Physics Letters,2013,102(10):102411. 10 Perzanowski M, Zabila Y, Krupinski M, et al. Chemical order and crystallographic texture of FePd∶Cu thin alloy films[J].Journal of Applied Physics,2012,111(7):074301. 11 Vlasova N I, Kleinerman N M, Serikov V V,et al.M?ssbauer study of fine structure features of equiatomic FePd alloy after severe plastic deformation and ordering annealing[J].Journal of Alloys and Compounds,2014,583:191. 12 Wang Ning, Jin Mingjiang, Li Jiayao, et al. Pulsed electrodeposition of Fe-Pd alloy film[J].Rare Metal Materials and Engineering,2014,32(3):324(in Chinese). 王宁,金明江,李家瑶,等.脉冲电沉积制备Fe-Pd合金薄膜[J].稀有金属材料与工程,2014,32(3):324. 13 Hsiao S N, Liu S H, Chen C C, et al. A comparison of rapid-annealed FePt and FePd thin films: Internal stress, L10 ordering, and texture[J].Vacuum,2016,125:1. 14 Bourgognon C, Tatarenko S, Cibert J, et al. Chemical ordering of epitaxial FePd deposited on ZnSe and the surfactant effect of segregated Se[J].Applied Physics Letters,2000,76(11):1455. 15 Halley D, Marty A, Bayle G P, et al. Chemical order and selection of the mechanism for strain relaxation in epitaxial FePd(Pt) thin layers[J].Physical Review B,2004,70(17):174438. 16 Sakuma N, Ohshima T, Shoji T, et al. Exchange coupling interaction in L10-FePd/α-Fe nanocomposite magnets with large maximum energy products[J].ACS Nano,2011,5(4):2806. 17 Chang H W, Yuan F T, Chen W C, et al. Hard magnetic property improvement of sputter-prepared FePd films on glass substrates by underlayering with refractory Nb, Mo, and W elements[J].IEEE Transactions on Magnetics,2015,51(11):1. 18 Bahamida S, Fnidiki A, Laggoun A, et al. A comparative structural and magnetic study of Fe100-xPdx(x=15, 20 and 36) thin films deposited on Si (100) and glass substrates[J].Journal of Magnetism and Magnetic Materials,2015,392:139. 19 Liu S H, Chen C C, Hsian S N, et al. Crystallographic structure and magnetic properties of polycrystalline FePd thin films on glass substrate[J].Applied Physics A,2015,119(2):623.
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2018, Vol. 32 
