Field emission properties and strong localization effect in conduction mechanism of nanostructured perovskite LaNiO3

Kamble, Ramesh B and Tanty, Narendra and Patra, Ananya and Prasad, V (2016) Field emission properties and strong localization effect in conduction mechanism of nanostructured perovskite LaNiO3. In: APPLIED PHYSICS LETTERS, 109 (8).

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Abstract

We report the potential field emission of highly conducting metallic perovskite lanthanum nickelate (LaNiO3) from the nanostructured pyramidal and whisker shaped tips as electron emitters. Nano particles of lanthanum nickelate (LNO) were prepared by sol-gel route. Structural and morphological studies have been carried out. Field emission of LNO exhibited high emission current density, J = 3.37 mA/cm(2) at a low threshold electric field, E-th = 16.91 V/mu m, obeying Fowler-Nordheim tunneling. The DC electrical resistivity exhibited upturn at 11.6K indicating localization of electron at low temperature. Magnetoresistance measurement at different temperatures confirmed strong localization in nanostructured LNO obeying Anderson localization effect at low temperature. Published by AIP Publishing.

Item Type:	Journal Article
Publication:	APPLIED PHYSICS LETTERS
Additional Information:	Copy right for this article belongs to the AMER INST PHYSICS, 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	28 Oct 2016 07:21
Last Modified:	28 Oct 2016 07:21
URI:	http://eprints.iisc.ac.in/id/eprint/55159

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