DocumentCode
1190235
Title
EPR and resistivity study of Pr0.7Ba0.3MnO3 manganite
Author
Ulyanov, Alexander N. ; Quang, Hoang Duc ; Pismenova, Nataliya E. ; Yu, Seong-Cho
Author_Institution
Dept. of Phys., Chung-Buk Nat. Univ., Cheongju, South Korea
Volume
41
Issue
10
fYear
2005
Firstpage
2745
Lastpage
2747
Abstract
The properties of Pr0.7Ba0.3MnO3 composition have been studied by means of magnetic and resistance measurements. According to X-ray CuK α diffraction analysis, the sample was single-orthorhombic phase. The temperature dependence of resistance in the paramagnetic region followed the nearest neighbor hopping of the small polaron model. The value of activation energy obtained with the resistivity measurement was higher than that deduced from the temperature dependence of electron paramagnetic resonance line intensity.
Keywords
barium compounds; magnetic polarons; magnetoresistance; paramagnetic materials; paramagnetic resonance; praseodymium compounds; Pr0.7Ba0.3MnO3; electron paramagnetic resonance; magnetic polarons; magnetoresistance; nearest neighbor hopping; paramagnetic materials; polaron model; single-orthorhombic phase; Conductivity measurement; Electrical resistance measurement; Electrons; Magnetic analysis; Magnetic properties; Nearest neighbor searches; Paramagnetic materials; Paramagnetic resonance; Temperature dependence; X-ray diffraction; Magnetic resonance; magnetoresistance (MR); resistance;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2005.854828
Filename
1519108
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