Phase decomposition of AuFe alloy nanoparticles embedded in silica matrix under swift heavy ion irradiation

被引：2

作者：

Pannu, Compesh ^{[1
]}

Bala, Manju ^{[1
]}

Singh, U. B. ^{[1
]}

Srivastava, S. K. ^{[2
]}

Kabiraj, D. ^{[1
]}

Avasthi, D. K. ^{[3
]}

机构：

[1] Interuniv Accelerator Ctr, Aruna Asaf Ali Marg, New Delhi, India

[2] Indian Inst Technol Kharagpur, Dept Phys & Astron, Kharagpur, W Bengal, India

[3] Amity Univ, Noida 201313, Uttar Pradesh, India

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2016年 / 379卷

关键词：

Alloy nanoparticles; Swift heavy ions; Thermal spike; Phase decomposition; X-ray photo electron spectroscopy; OPTICAL-PROPERTIES; THIN-FILMS; TRACKS;

D O I：

10.1016/j.nimb.2016.02.034

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

AuFe alloy nanoparticles embedded in silica matrix are synthesized using atom beam sputtering technique and subsequently irradiated with 100 MeV Au ions at various fluences ranging from 1 x 10(13) to 6 x 10(13) ions/cm(2). The X-ray diffraction, absorption spectroscopy, X-ray photo electron spectroscopy and transmission electron microscopy results show that swift heavy ion irradiation leads to decomposition of AuFe alloy nanoparticles from surface region and subsequent reprecipitation of Au and Fe nanoparticles occur. The process of phase decomposition and reprecipitation of individual element nanoparticles is explained on the basis of inelastic thermal spike model. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：206 / 210

页数：5

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