Magnetic behavior of Co and Ni implanted MgO

被引:8
作者
Cruz, MM
da Silva, RC
Pinto, JV
González, RG
Alves, E
Godinho, M
机构
[1] UL, FCUL, CFMC, Dept Fis, P-1749016 Lisbon, Portugal
[2] ITN, Dept Fis, P-2695953 Sacavem, Portugal
[3] CFNUL, P-1649003 Lisbon, Portugal
[4] Univ Carlos III Madrid, Dept Fis, Leganes, Madrid, Spain
关键词
implanted insulators; ferromagnetic precipitates; magnesium oxide; cobalt nanoparticles;
D O I
10.1016/j.jmmm.2003.11.347
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Single crystals of MgO were implanted with high doses of Co and Ni ions, aiming at the possibility of producing colloidal dispersions of metallic precipitates. Post-implantation annealing in vacuum is used to promote the diffusion of the implanted ions and the recovery of the MgO lattice. Results of magnetization measurements as a function of temperature and magnetic field are presented and correlated with information obtained by Rutherford backscattering measurements in the same samples. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:840 / 842
页数:3
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