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Author Kamble, Ramesh B. ♦ Tanty, Narendra ♦ Patra, Ananya ♦ Prasad, V.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword 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
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.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-08-22
Publisher Place United States
Journal Applied Physics Letters
Volume Number 109
Issue Number 8


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