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Surface spin glass behavior in sol–gel derived La0.7Ca0.3MnO3 nanotubes

Singh, Satyendra and Krupanidhi, SB (2008) Surface spin glass behavior in sol–gel derived La0.7Ca0.3MnO3 nanotubes. In: Dalton Transactions, 35 . pp. 4708-4710.

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We report the fabrication of La0.7Ca0.3MnO3 nanotubes (LCMONTs) with a diameter of about 200 nm, by a modified sol-gel method utilizing nanochannel alumina templates. High resolution transmission electron microscopy confirmed that the obtained LCMONTs are made up of nanoparticles (8-12 nm), which are randomly aligned in the wall of the nanotubes. The strong irreversibility between zero field cooling (ZFC) and field cooling (FC) magnetization curves as well as a cusplike peak in the ZFC curve gives strong support for surface spin glass behavior.

Item Type: Journal Article
Publication: Dalton Transactions
Publisher: Royal Society of Chemistry
Additional Information: Copyright of this article belongs to Royal Society of Chemistry.
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 04 Jun 2010 09:21
Last Modified: 19 Sep 2010 05:58
URI: http://eprints.iisc.ac.in/id/eprint/26726

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