English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/53669
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Phase coexistence and magnetic anisotropy in polycrystalline and nanocrystalline LaMnO3+δ

AuthorsChandra, S.; Figueroa, A. I.
Issue Date2011
PublisherAmerican Institute of Physics
CitationJournal of Applied Physics 109(7): 07D720 (2011)
AbstractWe report on the phase coexistence and magnetic anisotropy in polycrystalline (bulk) and nanocrystalline (∼15 nm) LaMnO3+δ materials, which were prepared by solid state reaction and sol-gel methods, respectively. In addition to standard magnetization measurements, radio-frequency transverse susceptibility (TS) based on a very sensitive, self-resonant tunnel diode oscillator method was used to probe magnetic anisotropy and switching fields in the samples. The results revealed a coexistence of the ferromagnetic (FM) and antiferromagnetic (AFM) phases in both samples. For the bulk sample, the AFM phase significantly changed in volume fraction at ∼30 K and completely vanished around 120 K. Size reduction to the nanometer scale (∼15 nm) significantly suppressed the AFM phase while inducing surface spin disorder in the material. The large magnetic anisotropies were probed by TS experiments in both samples. Our studies showed that the magnetic properties of bulk LaMnO3+δ were strongly modified by size reduction.
URIhttp://hdl.handle.net/10261/53669
DOI10.1063/1.3551734
Identifiersdoi: 10.1063/1.3551734
issn: 0021-8979
e-issn: 1089-7550
Appears in Collections:(ICMA) Artículos
Files in This Item:
File Description SizeFormat 
Phase coexistence and magnetic.pdf686,5 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.