FePt films on self-assembled SiO2 particle arrays

被引:9
作者
Makarov, D. [1 ]
Brombacher, C. [1 ]
Liscio, F. [2 ]
Maret, M. [2 ]
Parlinska, M. [3 ]
Meier, S. [3 ]
Kappenberger, P. [3 ]
Albrecht, M. [4 ]
机构
[1] Univ Konstanz, Dept Phys, D-78457 Constance, Germany
[2] UJF, INP Grenoble, SIMAP, CNRS, F-38402 St Martin Dheres, France
[3] Empa, Nanoscale Mat Sci, CH-8600 Dubendorf, Switzerland
[4] Tech Univ Chemnitz, Inst Phys, D-09107 Chemnitz, Germany
关键词
D O I
10.1063/1.2841729
中图分类号
O59 [应用物理学];
学科分类号
摘要
Chemically L1(0) ordered (001) textured FePt thin films with perpendicular magnetic anisotropy can be grown on amorphous planar SiO(2) substrate with an underlayer stack of [Pt (3 nm)/Cr (50 nm)] adopting a [002] orientation when deposited at 350 degrees C. This knowledge of optimum layer stack was transferred to self-assembled SiO(2) particle arrays. While 330 nm SiO(2) particle arrays reveal perpendicular magnetic anisotropy with a remanence of almost one and a coercivity of 370 mT, on 160 nm particles, the FePt caps show a (111) texturing, leading to the random orientation of the easy axis of the magnetization. (c) 2008 American Institute of Physics.
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页数:4
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