Effect of oxygen content on the magnetic and transport properties of Pr0.5Ba0.5MnO3-gamma

Authors
Troyanchuk, IO Trukhanov, SV Szymczak, H Baerner, K
Citation
Io. Troyanchuk et al., Effect of oxygen content on the magnetic and transport properties of Pr0.5Ba0.5MnO3-gamma, J PHYS-COND, 12(7), 2000, pp. L155-L158
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF PHYSICS-CONDENSED MATTER
ISSN journal
09538984 → ACNP
Volume
12
Issue
7
Year of publication
2000
Pages
L155 - L158
Database
ISI
SICI code
0953-8984(20000221)12:7<L155:EOOCOT>2.0.ZU;2-4
Abstract
It is shown that oxidized La0.5Sr0.5(Mn0.53+Mn0.54+)O-3 and reduced Pr0.5Ba 0.5Mn3+O2.75 samples show similar magnetic and magnetoresistive properties. Both compounds, characterized by T-C approximate to 320 K, exhibit a ferro magnetic-antiferromagnetic transition around 200 K, where a large magnetore sistance develops. However, the reduced sample has a much larger resistivit y than the oxidized one. These data suggest that some of the intriguing pro perties of the manganites can also be realized without mixed manganese vale nces.