Local probe studies in the weakly Jahn- Teller distorted LaMnO3.08 manganite
authors Lopes, AML; Correia, JG; Amaral, VS; Araujo, JP
nationality International
journal PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
author keywords distortion; electrical field gradient; Jahn-Teller effect; manganites
keywords OXYGEN-CONTENT; LAMNO3+DELTA; PEROVSKITE; LA1-XCAXMNO3; LOCALIZATION; LA1-XSRXMNO3; DIFFRACTION; CATALYSTS; ORDER; NMR
abstract The LaMnO3.08 manganite system was studied as a function of temperature ranging from 10 up to 292K using the perturbed angular correlation local probe technique at ISOLDE-CERN facility. The electrical field gradient (EFG) measurements performed across the different temperatures revealed a single EFG distribution, corresponding to a unique probe local environment. In contrast with the small-polaron picture, no fully Jahn-Teller distorted Mn3+O6 octahedra was observed in this insulator sample. A local single-phase scenario with uniform Mn charge distribution is proposed. (C) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
publisher WILEY-V C H VERLAG GMBH
issn 0370-1972
year published 2014
volume 251
issue 3
beginning page 565
ending page 568
digital object identifier (doi) 10.1002/pssb.201350075
web of science category Physics, Condensed Matter
subject category Physics
unique article identifier WOS:000332523600009
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