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Charge-order breaking and ferromagnetism in La0.4Ca0.6MnO3 nanoparticles
Nanjing University, Peoples R China.
Nanjing University, Peoples R China.
Nanjing University, Peoples R China.
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-2582-1740
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2007 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 91, no 3, 032502- p.Article in journal (Refereed) Published
Abstract [en]

La0.4Ca0.6MnO3 nanoparticles of grain size as small as similar to 20 nm are prepared and their magnetic behaviors are investigated in order to understand the size effect of the charge ordering in manganites. The highly stable charge-ordered state can be significantly suppressed upon reduction of the grain size down to nanometer scale, while the ferromagnetism is enhanced. The magnetic phase separation due to the competition between ferromagnetic state and charge-ordered state as well as the surface spin disordering is responsible for the spin-glass-like state at low temperature. (C) 2007 American Institute of Physics.

Place, publisher, year, edition, pages
American Institute of Physics (AIP) , 2007. Vol. 91, no 3, 032502- p.
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Physical Sciences
Identifiers
URN: urn:nbn:se:liu:diva-115711DOI: 10.1063/1.2753749ISI: 000248194000029OAI: oai:DiVA.org:liu-115711DiVA: diva2:796085
Available from: 2015-03-18 Created: 2015-03-18 Last updated: 2017-12-04

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Gao, Feng

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