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Browse Journals & Magazines > Journal of Applied Physics ...> Volume:109 Issue:8 Help

Influence of reactive atmosphere on properties of cobalt ferrite thin films prepared using pulsed-laser deposition

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3 Author(s)
Raghunathan, A. ; Wolfson Centre for Magnetics, Cardiff University, Cardiff CF24 3AA, United Kingdom ; Jiles, D.C. ; Snyder, J.E.

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.3574918 

A series of cobalt ferrite (CFO) thin films were grown on SiO2/Si(100) substrates using pulsed-laser deposition (PLD) at substrate temperature (TDEP) of 250 °C and oxygen pressures (PO2) from 0.67 to 6.7 Pa. The influence of PO2 on crystal structure, phase mixture, deposition rate, and magnetic properties was investigated. It is shown in this study that there is a window of PO2 for optimized growth of nanograined CFO films at low TDEP and that either higher or lower values of PO2 produce undesirable multiphase mixtures. CFO films grown at such low substrate temperature and optimized oxygen pressure on thermal expansion matched substrates can be applied in multilayer sensors or MEMS devices.

Published in:
Journal of Applied Physics  (Volume:109 ,  Issue: 8 )

Date of Publication: Apr 2011

Page(s):
083922 - 083922-4
ISSN :
0021-8979
Digital Object Identifier :
10.1063/1.3574918
Product Type:
Journals & Magazines
Date of Current Version :
25 April 2011
Issue Date :
Apr 2011

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