Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0921-4526(03)00124-8
Title: Grain boundary effects on the magneto-transport properties of Sr2FeMoO6 induced by variation of the ambient H2-Ar mixture ratio during annealing
Authors: Yuan, C.L. 
Zhu, Y. 
Ong, P.P. 
Ong, C.K. 
Yu, T. 
Shen, Z.X. 
Keywords: Double perovskites
Grain boundaries
Magnetoresistance
Issue Date: Jul-2003
Citation: Yuan, C.L., Zhu, Y., Ong, P.P., Ong, C.K., Yu, T., Shen, Z.X. (2003-07). Grain boundary effects on the magneto-transport properties of Sr2FeMoO6 induced by variation of the ambient H2-Ar mixture ratio during annealing. Physica B: Condensed Matter 334 (3-4) : 408-412. ScholarBank@NUS Repository. https://doi.org/10.1016/S0921-4526(03)00124-8
Abstract: Using the sol-gel method, polycrystalline double perovskites Sr2FeMoO6 with nanometer-scale grain size have been synthesized in the ambience of a controlled stream of different gaseous H2-Ar mixtures during annealing. X-ray diffraction (XRD) results indicated that with an increasing proportion of H2, the component of the SrMoO4 impurity present in the crystallites first decreased, but then increased again with further increase of the H2 proportion. The XRD results were further supported by independent sample analysis using Raman spectroscopy. Systematic investigation of the transport properties of the samples indicated that the SrMoO4 impurity at the grain boundary played a key role in determining the measured resistance and magnetoresistance of Sr2FeMoO6. This impurity effect was found to be correlated to the variation of the mixture ratio of the ambient H2-Ar gas stream surrounding the sample during annealing. © 2003 Elsevier Science B.V. All rights reserved.
Source Title: Physica B: Condensed Matter
URI: http://scholarbank.nus.edu.sg/handle/10635/96733
ISSN: 09214526
DOI: 10.1016/S0921-4526(03)00124-8
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

16
checked on Jun 20, 2018

WEB OF SCIENCETM
Citations

17
checked on Jun 13, 2018

Page view(s)

40
checked on Jun 1, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.