Influence of Magnetostatic Interaction on the Magnetization Reversal of Patterned Co/Pd Multilayers Nanorings

被引：3
|
作者：
Ren, Yang [1 ]
Liu, Xinming M. [1 ]
Singh, N. [2 ]
Adeyeye, A. O. [1 ]
机构：
[1] Natl Univ Singapore, Dept Elect & Comp Engn, Informat Storage Mat Lab, Singapore 117576, Singapore
[2] Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2013年 / 49卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Co/Pd; focused MOKE; magnetostatic coupling; perpendicular magnetic nanorings; ANISOTROPY;
D O I：
10.1109/TMAG.2013.2249657
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present a systematical investigation of magnetostatic interaction on magnetization reversal process for [Co(5 angstrom)/Pd(30 angstrom) multilayers nanoring arrays separated by various edge-to-edge interring spacing (s). We observed that the coercivity H-c and switching field distribution (SFD) are strongly dependent on both and number of multilayer repeats n. For a fixed n, the absolute SFD and both increase with increasing s. However, the normalized SFD (SFD/H-c) shows a non-monotonic variation, while a minimum value of the normalized SFD is observed at a critical s = 500 nm. The findings are strongly related to the magnetostatic interaction on magnetization reversal in nanoring arrays, which are further revealed by micromagnetic simulations together with magnetic force microscopy.
引用
收藏
页码：3620 / 3623
页数：4
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