Magnetic Properties of Co 2D Antidot Arrays with Hexagonal Holes Using Colloidal Crystal Template Method

doi:10.1007/s40195-016-0393-2

金属学报英文版 ›› 2016, Vol. 29 ›› Issue (5): 409-421.DOI: 10.1007/s40195-016-0393-2

• • 下一篇

收稿日期:2016-03-12 修回日期:2016-03-12 出版日期:2016-03-12 发布日期:2016-05-10

Magnetic Properties of Co 2D Antidot Arrays with Hexagonal Holes Using Colloidal Crystal Template Method

Hong-Fei Qi¹(), Da-Bo Liu¹, Song-Yan Dai¹, Tian-Min Wang²

1. Department of Steel and Rare-Noble Metals, Beijing Institute of Aeronautical Materials, Beijing 100095, China
2.Center of Condensed Matter and Material Physics, Beihang University, Beijing 100191, China

Received:2016-03-12 Revised:2016-03-12 Online:2016-03-12 Published:2016-05-10

摘要/Abstract

Abstract:

In this work, Co 2D antidot arrays with well-ordered hexagonal holes ranging in size from 1.3 to 6.2 μm were fabricated by colloidal crystal template method. The geometry configuration and magnetic properties of the samples were investigated. An enormous increase in coercivity and squareness, as compared with the corresponding continuous film, was observed. Magnetic properties of Co 2D antidot arrays showed a close dependence on pore diameter. According to geometric calculation, the effect of the pore diameter on magnetic properties was also discussed. The Co 2D antidot arrays obtained by this method are promising candidates for high-density information storage.

Key words: Co antidot arrays, Colloidal crystal template, Hexagonal holes, Magnetic properties

. [J]. 金属学报英文版, 2016, 29(5): 409-421.

Hong-Fei Qi, Da-Bo Liu, Song-Yan Dai, Tian-Min Wang. Magnetic Properties of Co 2D Antidot Arrays with Hexagonal Holes Using Colloidal Crystal Template Method[J]. Acta Metallurgica Sinica (English Letters), 2016, 29(5): 409-421.

图/表 7

Fig.1 Highly ordered Co antidot arrays with pore diameter about 1.3 μm a, 6.2 μm b, c magnification of a displaying mean hole dimension and the angle-to-angle distances

Fig.2 a AFM image of Co antidot arrays with pore diameter about 1.3 μm, b the same image was converted into a three-dimensional perspective

Fig. 3 XRD pattern of the continuous Co film

Fig. 4 Hysteresis hoops of the Co antidot arrays with pore diameter about 1.3 μm. The H‖ represents the direction of magnetic field applied parallel to the surface of Co antidot arrays and the H ⊥ perpendicular to Co antidot arrays

Fig. 5 Change of the coercivity (H) and squareness (M r/M s) at H‖ orientation with the pore diameter

Fig. 6 Hysteresis hoops of the Co films at H‖ orientation

Fig. 7 Structure model of Co 2D antidot arrays with hexagonal holes, where d is defined as the diameter of the corresponding PS particles, r is the radius of the hexagonal macropore, and a is the interhole distance

参考文献 23

[1]	V. Proshchenko, Y. Dahnovsky, Chem. Phys. 461, 58(2015)
[2]	Z. Chen, W. Wang, K.G. Zhu, Acta Metall. Sin. (Engl. Lett.) 28,1(2015)
[3]	R.L. J. Magn. Magn. Mater. 350, 88(2014)
[4]	J.E. Chen, H.Y. Lian, S. Dutta, S.M. Alshehri, Y. Yamauchi,M.T. Nguyen, T. Yonezawa, K.C.W. Phys. Chem. Chem.Phys. 17, 27653(2015)
[5]	S. Bedanta, W. Kleemann, J. Phys. D 43, 013001 (2009)
[6]	L.Z. Liu, S.B. Tian, Y.Z. Long, W.X. Li, H.F. Yang, J.J. Li, C.Z.Gu, Vacuum 105, 21 (2014)
[7]	M. Madami, G. Gubbiotti, S. Tacchi, G. Carlotti, S. Jain, Phys. B 435, 152 (2014)
[8]	N.G. Deshpande, J.S. Hwang, M.S. Seo, Y.J. Yoo, J.Y. Rhee,K.W. Kim, Y.C. Shao, K.H. Chen, W.F. Pong, Y.P. Lee, Appl.Surf. Sci. 314, 453(2014)
[9]	S. Mallick, S. Bedanta, J. Magn. Magn. Mater. 382, 158(2015)
[10]	J.L. Palma, C. Gallardo, L. Spinu, J.M. Vargas, L.S. Dorneles,J.C. Denardin, J. Escrig, J. Magn. Magn. Mater. 344, 8(2013)
[11]	M. Coı¨sson, A. Manzin, G. Barrera, F. Celegato, E. Enrico, P.Tiberto, F. Vinai, Appl. Surf. Sci. 316, 380(2014)
[12]	J. Sklenar, V.S. Bhat, L.E. Appl. Phys. Lett. 102, 152412(2013)
[13]	Y. Tsuchiya, H.T. Huy, T. Ishida, S. Pyon, T. Tamegai, Phys. C 504, 39 (2014)
[14]	T.J. Meng, J.B. Laloe¨, S.N. Holmes, A. Husmann, G.A.C. J. Appl. Phys. 106, 033901(2009)
[15]	R. Zivieri, L. Giovannini, Photon. Nanostruct. 11, 191(2013)
[16]	V. Malgras, Q. Ji, Y. Kamachi, T. Mori, F.K. Shieh, K.C.W. Bull. Chem. Soc. Jpn 88, 1171 (2015)
[17]	H.F. Qi, W.C. Hao, H.Z. Xu, J.Y. Zhang, T.M. Wang, Colloid Polym. Sci. 287, 243(2009)
[18]	H.F. Qi, D.B. Liu, L.J. Teng, T.M. Wang, F. Luo, Y. Tian, Acta Metall. Sin. 50, 1163(2014). (in Chinese)
[19]	M. Yu, H. Qiu, X. Chen, Thin Solid Films 518, 7174 (2010)
[20]	Y.L. Li, T.F. Feng, Z.Y. Chen, Appl. Surf. Sci. 257, 3666(2011)
[21]	H. Suzuki, K. Nakamura, T. Akiyama, T. Ito, Appl. Surf. Sci.254, 7843(2008)
[22]	C.I. Appl. Phys. Lett. 104, 092402(2014)
[23]	X.K. Hu, S. Sievers, A. Mu¨ller, H.W. Schumacher, J. Appl.Phys. 113, 103907(2013)

Magnetic Properties of Co 2D Antidot Arrays with Hexagonal Holes Using Colloidal Crystal Template Method

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

图/表 7

参考文献 23

相关文章 0

编辑推荐

Metrics

本文评价