Synthesis of FeCo nanoparticles by pulsed laser deposition in a diffusion cloud chamber

被引：36

作者：

Ong, P. L. ^{[2
]}

Mahmood, S. ^{[1
]}

Zhang, T. ^{[1
]}

Lin, J. J. ^{[1
]}

Ramanujan, R. V. ^{[2
]}

Lee, P. ^{[1
]}

Rawat, R. S. ^{[1
]}

机构：

[1] Nanyang Technol Univ, Natl Inst Educ, Singapore 637616, Singapore

[2] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

来源：

APPLIED SURFACE SCIENCE | 2008年 / 254卷 / 07期

关键词：

nanoparticles; FeCo; pulsed laser deposition; diffusion cloud chamber;

D O I：

10.1016/j.apsusc.2007.07.186

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Magnetic FeCo nanoparticles were successfully synthesized in a diffusion cloud chamber setup within pulsed laser deposition (PLD) equipment. The variation of morphology and size of FeCo nanoparticles with the number of laser pulses, ambient gas pressure and temperature gradient was studied. It was observed that the morphology of the nanoparticles changes from "cloud-like" fractal clusters to particle chains; average particle size increased at higher argon gas pressure. Increasing the temperature gradient considerably reduced the agglomeration of the nanoparticles. Nanoparticles deposited using the diffusion cloud chamber are found to be crystalline. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：1909 / 1914

页数：6

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