Deformation yield of Co nanoparticles inSiO2 irradiated with 200 MeV 127I ions

被引：18
作者：
D'Orléans, C
Stoquert, JP
Estournès, C
Grob, JJ
Muller, D
Cerruti, C
Haas, F
机构：
[1] CNRS, UPR 292, Lab PHASE, F-67037 Strasbourg 2, France
[2] IPCMS, GMI, F-37037 Strasbourg 2, France
[3] IreS, F-67037 Strasbourg 2, France
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2004年 / 225卷 / 1-2期
关键词：
ion implantation; cobalt; nanoparticles; irradiation; transmission electron microscopy; deformation;
D O I：
10.1016/j.nimb.2004.06.012
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Cobalt ions of 160 keV have been implanted into SiO2 layers at a fluence of 10(17) at cm(-2) at 873 K. The resulting spherical metallic Co nanoparticles have been in their turn irradiated by 200 MeV I-127 ions at between 10(11) and 10(14) ions cm-(2) at 300 K. The latter procedure induces an increase of the particle size for lower fluences and a deformation for higher fluences. The modification of particle size and shape has been followed by transmission electron microscopy. An incubation fluence for Co nanoparticle deformation of a few 10(12) ions cm(-2) and deformation yields of 1.7 x 10(-14) and 3.3 x 10(-14) cm(2) have been measured for Co nanoparticles of 7.2 and 15.6 mean diameters, respectively. The results are compared with existing models. (C) 2004 Elsevier B.V. All rights reserved.
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收藏
页码：154 / 159
页数：6
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