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Browse Journals & Magazines > Applied Physics Letters ...> Volume:70 Issue:13 Help

Growth and properties of c-axis textured La0.7Sr0.3MnO3-δ films on SiO2/Si substrates with a Bi4Ti3O12 template layer

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11 Author(s)
Gu, J.Y. ; Department of Physics, Center for Superconductivity Research, University of Maryland, College Park, Maryland 20742 ; Kwon, C. ; Robson, M.C. ; Trajanovic, Z.
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Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.118649 

c-axis textured La0.7Sr0.3MnO3-δ (LSMO) films were fabricated on SiO2/Si(001) substrates using a Bi4Ti3O12 (BTO) template layer. Electrical and magnetic properties of LSMO were investigated. The LSMO/BTO layer of this structure has no in-plane alignment. Even though a ferromagnetic transition temperature, TC, is as high as that of the epitaxial LSMO film (360 K), a resistivity peak temperature, TP, is about 140 K lower than TC. The resistivity behavior as a function of temperature for LSMO/BTO/SiO2/Si films is found to be dominated by grain boundary effects. Low field sensitive magnetoresistance which suggests spin tunneling through the grain boundaries is also observed at room temperature. © 1997 American Institute of Physics.

Published in:
Applied Physics Letters  (Volume:70 ,  Issue: 13 )

Date of Publication: Mar 1997

Page(s):
1763 - 1765
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.118649
Product Type:
Journals & Magazines
Date of Current Version :
18 June 2009
Issue Date :
Mar 1997

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