Structural and Magnetic Properties of [Fe/Ni]N Multilayers
TANG Jia, MA Bin, ZHANG Zong-Zhi, JIN Qing-Yuan
Key Lab of Advanced Photonic Materials and Devices, Laboratory of Advanced Materials and Department of Optical Science and Engineering, Fudan University, Shanghai 200433
Structural and Magnetic Properties of [Fe/Ni]N Multilayers
TANG Jia, MA Bin, ZHANG Zong-Zhi, JIN Qing-Yuan
Key Lab of Advanced Photonic Materials and Devices, Laboratory of Advanced Materials and Department of Optical Science and Engineering, Fudan University, Shanghai 200433
[Fe/Ni]N multilayered structure grows epitaxially on the single crystalline MgO substrate. Due to the different directions of magnetic easy axes of Fe and Ni and the strong strain, large anisotropy dispersion is assumed. According to the layer model, the magnetization of Fe and Ni layers cannot follow each easy axis because of exchange coupling, and then the anisotropies are averaged out. The reduction of the effective anisotropy enhances with the decrease of periodic thickness. Thus, the coercivity of [Fe/Ni]N multilayers reduces with decreasing periodic thickness.
[Fe/Ni]N multilayered structure grows epitaxially on the single crystalline MgO substrate. Due to the different directions of magnetic easy axes of Fe and Ni and the strong strain, large anisotropy dispersion is assumed. According to the layer model, the magnetization of Fe and Ni layers cannot follow each easy axis because of exchange coupling, and then the anisotropies are averaged out. The reduction of the effective anisotropy enhances with the decrease of periodic thickness. Thus, the coercivity of [Fe/Ni]N multilayers reduces with decreasing periodic thickness.
TANG Jia;MA Bin;ZHANG Zong-Zhi;JIN Qing-Yuan. Structural and Magnetic Properties of [Fe/Ni]N Multilayers[J]. 中国物理快报, 2010, 27(7): 77502-077502.
TANG Jia, MA Bin, ZHANG Zong-Zhi, JIN Qing-Yuan. Structural and Magnetic Properties of [Fe/Ni]N Multilayers. Chin. Phys. Lett., 2010, 27(7): 77502-077502.
[1] Kohmoto O 1991 IEEE Trans. Magn. 27 3640 [2] Kryder M H, Wang S and Rook K 1993 J. Appl. Phys. 73 6212 [3] Nie H B, Ong C K and Wang J P 2003 J. Appl. Phys. 93 7252 [4] Nagakubo M, Yamamoto T and Naoe M 1988 J. Appl. Phys. 64 5751 [5] Kumasaka N, Saito N, Shiroishi Y, Shiiki K, Fujiwara H and Kudo M 1984 J. Appl. Phys. 55 2238 [6] Kobayashi T, Nakatani R, Ootomo S and Kumasaka N 1988 J. Appl. Phys. 64 3157 [7] Nagai Y, Senda M and Toshima T 1988 J. Appl. Phys. 63 1136 [8] de Wit H J 1992 Rep. Prog. Phys. 55 113 [9] Herzer G 1991 Mater. Sci. Engin. A 133 1 [10] Herzer G 1995 Scripta Met. Mater. 33 1741 [11] de Wit H J 1989 J. Magn. Magn. Mater. 79 167 [12] Keavney D J, Fullerton E E and Bader S D 1997 J. Appl. Phys. 81 795 [13] Barbier A, Renaud G and Robach O 1998 J. Appl. Phys. 84 4259 [14] Myagkov V G, Zhigalov V C, Bykova L E and Bondarenko G N 2006 J. Magn. Magn. Mater. 305 534
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