Synthesis of iron and copper nano-clusters in SiO2 by ion implantation and the magnetic properties

被引：2
|
作者：
Hayashia, N
Sakamoto, I
Moriwakic, T
Wakabayashi, H
Toriyama, T
机构：
[1] Kurume Inst Technol, Fukuoka 8300052, Japan
[2] AIST, Tsukuba, Ibaraki 3058568, Japan
[3] Kochi Univ Technol, Kochi 7828502, Japan
[4] Musashi Inst Technol, Tokyo 1588557, Japan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2005年 / 290卷
关键词：
iron clustering; conversion electron Mossbauer; Fe-Cu alloy; ion implantation;
D O I：
10.1016/j.jmmm.2004.11.221
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
he formation of iron and copper nano-clusters in crystalline SiO2 by sequential implantations of Fe and Cu ions was studied. The implantation was performed at room temperature to a total dose of 1.9 x 10(19) ions/cm(2). The addition of Cu ions was done by a dose of 0.7 x 10(17)CU ions/cm(2). It is shown by the measurements of conversion electron Mossbauer spectroscopy and X-ray diffraction that the addition of Cu ions promotes the transitions from superparamagnetic to ferromagnetic states in the iron nano-clusters aggregated beforehand. (c) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：98 / 101
页数：4
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