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Electric-field tuning of the metal-insulator transition in ultrathin films of LaNiO3.
- Source :
- Applied Physics Letters; 11/30/2009, Vol. 95 Issue 22, p222114, 3p, 3 Graphs
- Publication Year :
- 2009
-
Abstract
- Epitaxial ultrathin films of the metallic perovskite LaNiO<subscript>3</subscript> were grown on (001) SrTiO<subscript>3</subscript> 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 LaNiO<subscript>3</subscript> films as the carrier density was electrostatically tuned. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 95
- Issue :
- 22
- Database :
- Complementary Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 45610496
- Full Text :
- https://doi.org/10.1063/1.3269591