Magneto-optical Kerr effect in perpendicularly magnetized Co/Pt films on two-dimensional colloidal crystals

被引：35
|
作者：
Liu, Z. [1 ,2 ]
Shi, L. [1 ,2 ]
Shi, Z. [1 ,2 ]
Liu, X. H. [1 ,2 ]
Zi, J. [1 ,2 ]
Zhou, S. M. [1 ,2 ]
Wei, S. J. [3 ]
Li, J. [3 ]
Zhang, X. [4 ]
Xia, Y. J. [4 ]
机构：
[1] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
[2] Fudan Univ, Surface Phys Lab, Natl Key Lab, Shanghai 200433, Peoples R China
[3] Fudan Univ, Dept Opt Sci & Engn, Shanghai 200433, Peoples R China
[4] Qufu Normal Univ, Shandong Prov Key Lab Laser Polarizat & Informat, Qufu 273165, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 03期
基金：
美国国家科学基金会;
关键词：
cobalt; colloidal crystals; interface magnetism; Kerr magneto-optical effect; magnetic thin films; nanosensors; platinum; reflectivity; surface plasmon resonance; EXTRAORDINARY OPTICAL-TRANSMISSION; ANISOTROPY; FABRICATION; SCATTERING; SHELLS;
D O I：
10.1063/1.3182689
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Magneto-optical Kerr effect and optical reflectance are measured in the visible region for perpendicularly magnetized Co/Pt films on self-assembly array of two-dimensional closely packed polystyrene spheres. Peaks and valleys are observed in the magneto-optical Kerr and the optical reflectance spectra and their positions scale with the sphere diameter. In explanation of the above scenario, not only the Mie optical scattering of single nanocaps but also the surface plasmon resonance should be considered. This work will facilitate development of magnetoplasmonic nanosensors.
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页数：3
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