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Electron spin resonance as probe to characterize the spin and charge order in La2NiO4.12

Authors :
Raquel A. Souza
Nathalie Poirot
Jean-Marc Bassat
GREMAN (matériaux, microélectronique, acoustique et nanotechnologies) (GREMAN - UMR 7347)
Institut National des Sciences Appliquées - Centre Val de Loire (INSA CVL)
Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Tours-Centre National de la Recherche Scientifique (CNRS)
Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB)
Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université de Bordeaux (UB)
Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)
Source :
Solid State Sciences, Solid State Sciences, Elsevier, 2008, 10 (5), pp.634-637. ⟨10.1016/j.solidstatesciences.2007.08.014⟩
Publication Year :
2008
Publisher :
Elsevier BV, 2008.

Abstract

International audience; We used electron spin resonance (ESR) and magnetic susceptibility to study the magnetic correlations in polycrystalline La2NiO4.12 prepared by modified sol–gel method. We observed an evolution of the ESR signal with temperature, from 4 K to 300 K, with marked changes at 220 K and 150 K. Such changes are related to the particular order of holes and spins previously observed in this system by neutron diffraction by other authors. Magnetic susceptibility measurements confirm the charge and spin order temperatures in this composition.

Details

ISSN :
12932558
Volume :
10
Database :
OpenAIRE
Journal :
Solid State Sciences
Accession number :
edsair.doi.dedup.....a6b8c82442ad19ae346e1b11ba234c54
Full Text :
https://doi.org/10.1016/j.solidstatesciences.2007.08.014