Superlattices and Microstructures, ( ISI ), Volume (72), No (8), Year (2014-8) , Pages (296-304)

Title : ( High coercivity FePt/CNT nanocomposites on SiO 2 surfaces )

Authors: H. Ashourifar , S.A. Sebt , M. Mojtahedzadeh Larijani , Hadi Arabi ,

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Abstract

The growth of 2 nm FePt nanocrystals on the wall of functionalized carbon nanotubes provides the ability of their size control under heat treatment for transformation to L1 0 phase. FePt/CNTs nano-are coated on SiO 2 wafers in presence of 0.5 T magnetic field and post annealed under reducing atmosphere (10% H 2 , 90% Ar) at 700 'C and different annealing times. The best result is recorded for 3 h annealing time at 700 'C. In this condition, the coercivity and chemical ordering of FePt/CNT nanocomposites are raised to 0.85 T and 99% respectively, even though FePt particles have the average size of about 5 nm.

Keywords

, FePt/CNT nanocomposites, Anisotropy, Magnetic properties and measurements, Phase transitions
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@article{paperid:1047808,
author = {H. Ashourifar and S.A. Sebt and M. Mojtahedzadeh Larijani and Arabi, Hadi},
title = {High coercivity FePt/CNT nanocomposites on SiO 2 surfaces},
journal = {Superlattices and Microstructures},
year = {2014},
volume = {72},
number = {8},
month = {August},
issn = {0749-6036},
pages = {296--304},
numpages = {8},
keywords = {FePt/CNT nanocomposites; Anisotropy; Magnetic properties and measurements; Phase transitions},
}

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%0 Journal Article
%T High coercivity FePt/CNT nanocomposites on SiO 2 surfaces
%A H. Ashourifar
%A S.A. Sebt
%A M. Mojtahedzadeh Larijani
%A Arabi, Hadi
%J Superlattices and Microstructures
%@ 0749-6036
%D 2014

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