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Title: Field emission properties and strong localization effect in conduction mechanism of nanostructured perovskite LaNiO{sub 3}

Abstract

We report the potential field emission of highly conducting metallic perovskite lanthanum nickelate (LaNiO{sub 3}) 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{sup 2} at a low threshold electric field, E{sub th} = 16.91 V/μm, obeying Fowler–Nordheim tunneling. The DC electrical resistivity exhibited upturn at 11.6 K 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.

Authors:
 [1];  [2]; ; ;  [1]
  1. Department of Physics, Indian Institute of Science, Bangalore 560012, Karnataka (India)
  2. (India)
Publication Date:
OSTI Identifier:
22590530
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 109; Journal Issue: 8; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELECTRIC FIELDS; FIELD EMISSION; LANTHANUM; MAGNETORESISTANCE; NANOSTRUCTURES; NICKELATES; PEROVSKITE; SOL-GEL PROCESS; TEMPERATURE RANGE 0000-0013 K; TUNNEL EFFECT

Citation Formats

Kamble, Ramesh B., E-mail: rbk.physics@coep.ac.in, Department of Physics, College of Engineering, Pune 411005, Maharashtra, Tanty, Narendra, Patra, Ananya, and Prasad, V. Field emission properties and strong localization effect in conduction mechanism of nanostructured perovskite LaNiO{sub 3}. United States: N. p., 2016. Web. doi:10.1063/1.4961312.
Kamble, Ramesh B., E-mail: rbk.physics@coep.ac.in, Department of Physics, College of Engineering, Pune 411005, Maharashtra, Tanty, Narendra, Patra, Ananya, & Prasad, V. Field emission properties and strong localization effect in conduction mechanism of nanostructured perovskite LaNiO{sub 3}. United States. doi:10.1063/1.4961312.
Kamble, Ramesh B., E-mail: rbk.physics@coep.ac.in, Department of Physics, College of Engineering, Pune 411005, Maharashtra, Tanty, Narendra, Patra, Ananya, and Prasad, V. Mon . "Field emission properties and strong localization effect in conduction mechanism of nanostructured perovskite LaNiO{sub 3}". United States. doi:10.1063/1.4961312.
@article{osti_22590530,
title = {Field emission properties and strong localization effect in conduction mechanism of nanostructured perovskite LaNiO{sub 3}},
author = {Kamble, Ramesh B., E-mail: rbk.physics@coep.ac.in and Department of Physics, College of Engineering, Pune 411005, Maharashtra and Tanty, Narendra and Patra, Ananya and Prasad, V.},
abstractNote = {We report the potential field emission of highly conducting metallic perovskite lanthanum nickelate (LaNiO{sub 3}) 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{sup 2} at a low threshold electric field, E{sub th} = 16.91 V/μm, obeying Fowler–Nordheim tunneling. The DC electrical resistivity exhibited upturn at 11.6 K 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.},
doi = {10.1063/1.4961312},
journal = {Applied Physics Letters},
number = 8,
volume = 109,
place = {United States},
year = {Mon Aug 22 00:00:00 EDT 2016},
month = {Mon Aug 22 00:00:00 EDT 2016}
}