Published November 30, 2009 | Version v1
Journal article Metadata-only

Electric-field tuning of the metal-insulator transition in ultrathin films of LaNiO3

Creators

  • 1. DPMC, University of Geneva, 24 Quai Ernest-Ansermet, 1211 Geneve 4 (Switzerland)

Description

Epitaxial ultrathin films of the metallic perovskite LaNiO3 were grown on (001) SrTiO3 substrates using off-axis rf magnetron sputtering. The film structure was characterized and their electrical properties investigated. Films thinner than 8 unit cells display a metal-insulator transition at a thickness dependent characteristic temperature. Hall measurements revealed p-type conduction, which was confirmed by electric field-effect experiments. Large changes in the transport properties and the metal-insulator transition temperature were observed for the thinnest LaNiO3 films as the carrier density was electrostatically tuned.

Additional details

Identifiers

DOI
10.1063/1.3269591;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
95
Journal Issue
22
Journal Page Range
p. 222114-222114.3
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41040549
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CARRIER DENSITY; DEPOSITION; ELECTRIC CONDUCTIVITY; ELECTRIC FIELDS; EPITAXY; HALL EFFECT; LANTHANUM COMPOUNDS; LAYERS; METALS; NICKELATES; PEROVSKITE; SPUTTERING; STRONTIUM TITANATES; SUBSTRATES; THICKNESS; THIN FILMS; TRANSITION TEMPERATURE
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CRYSTAL GROWTH METHODS; DIMENSIONS; ELECTRICAL PROPERTIES; ELEMENTS; FILMS; MINERALS; NICKEL COMPOUNDS; OXIDE MINERALS; OXYGEN COMPOUNDS; PEROVSKITES; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; STRONTIUM COMPOUNDS; THERMODYNAMIC PROPERTIES; TITANATES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
(c) 2009 American Institute of Physics