Swift heavy ions irradiation studies on some ferrite nanoparticles

被引：36
|
作者：
Rao, BP [1 ]
Rao, KH
Rao, PSVS
Kumar, AM
Murthy, YLN
Asokan, K
Kumar, VVS
Kumar, R
Gajbhiye, NS
Caltun, OF
机构：
[1] Andhra Univ, Dept Phys, Visakhapatnam 530003, Andhra Pradesh, India
[2] Andhra Univ, Dept Chem, Visakhapatnam 530003, Andhra Pradesh, India
[3] Ctr Nucl Sci, New Delhi 110067, India
[4] Indian Inst Technol, Dept Chem, Kanpur 208016, Uttar Pradesh, India
[5] AZ Cuza Univ, Dept Elect & Elect, Iasi, Romania
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2006年 / 244卷 / 01期
关键词：
ferrites; nanoparticles; magnetisation; irradiation; ferromagnetic resonance;
D O I：
10.1016/j.nimb.2005.11.009
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Ferrite nanoparticles of two different systems, namely Ni0.65Zn0.375In0.25Ti0.025Fe1.70O4 and Mn0.75Zn0.18Fe2.07O4, have been prepared by two different methods of ball milling (mechano synthesis) and coprecipitation (soft chemistry) respectively to investigate the effect of swift heavy ion irradiations on the structural, magnetic and ferromagnetic resonance parameters on these systems. The powder samples of Ni-Zn and Mn-Zn ferrites were irradiated with 190 MeV Ag15+ ion with fluences of 1 x 10(13) ions/cm(2) and 5 x 10(12) ions/cm(2) respectively using the 15 UD Pelletron Accelerator at NSC. The unirradiated and irradiated samples were then subjected to characterization techniques such as X-ray diffraction, vibrating sample magnetometer and ferromagnetic resonance spectrometer. The results of these characterizations are found to be different for irradiated from that of the pristine sample. The modifications in respect of irradiated samples are explained in terms of the ion-induced disorder. (c) 2005 Elsevier B.V. All rights reserved.
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收藏
页码：27 / 30
页数：4
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