Vertruyen, B and Fagnard, JF and Vanderbemden, P and Ausloos, M and Rulmont, A and Cloots, R (2007) Electrical transport and magnetic properties of Mn3O4-La0.7Ca0.3MnO3 ceramic composites prepared by a one-step spray-drying technique. Journal of the European Ceramic Society, 27. pp. 3923-3926. ISSN 0955-2219Full text not available from this repository.
La0.7Ca0.3MnO3/Mn3O4 composites can be synthesized in one step by thermal treatment of a spray-dried precursor, instead of mixing pre-synthesized powders. Another advantage of this composite system is that a long sintering step can be used without leading to significant modification of the manganite composition. The percolation threshold is reached at ∼20 vol% of manganite phase. The 77 K low field magnetoresistance is enhanced to ∼11% at 0.15 T when the composition is close to the percolation threshold. © 2007 Elsevier Ltd. All rights reserved.
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|Date Deposited:||16 Jul 2015 13:03|
|Last Modified:||04 Oct 2015 05:49|