Tailoring of magnetic properties of patterned cobalt antidots by simple manipulation of lattice symmetry

被引：44
作者：
Deshpande, N. G. [1 ,2 ]
Seo, M. S. [1 ,2 ]
Jin, X. R. [1 ,2 ]
Lee, S. J. [1 ,2 ]
Lee, Y. P. [1 ,2 ]
Rhee, J. Y. [3 ]
Kim, K. W. [4 ]
机构：
[1] Hanyang Univ, Dept Phys, Seoul 133791, South Korea
[2] Hanyang Univ, Quantum Photon Sci Res Ctr, Seoul 133791, South Korea
[3] Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea
[4] Sunmoon Univ, Dept Phys, Asan 336708, South Korea
来源：
APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 12期
关键词：
cobalt; Kerr magneto-optical effect; magnetic anisotropy; magnetic force microscopy; magnetisation reversal; quantum dots; scanning electron microscopy; ARRAYS; REVERSAL; SHAPE; SIZE;
D O I：
10.1063/1.3368691
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Cobalt (Co) antidot arrays with different lattice geometries, square and rhomboid structures were fabricated and their magnetic reversal properties were studied by scanning-electron microscopy (SEM), magneto-optic Kerr effect, and magnetic force microscopy (MFM). Different lattice symmetries induced the corresponding anisotropies with changing easy and hard axes. The nearest-neighbor rule is not applicable in case of the rhomboid antidot lattice, while the inclusion theory is. These results are different from those of the previous investigations. The differences are due to different sizes and spacing's between the antidots. The MFM images in the remanent state showed well-defined domain structures, periodic in nature according to the lattice geometry.
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页数：3
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