Polar Discontinuity Doping of the LaVO_3/SrTiO_3 Interface

Autor:	Hotta, Y., Susaki, T., Hwang, H. Y.
Rok vydání:	2007
Předmět:	Condensed Matter - Strongly Correlated Electrons
Zdroj:	Phys. Rev. Lett. 99, 236805 (2007)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.99.236805
Popis:	We have investigated the transport properties of LaVO_3/SrTiO_3 Mott insulator/band insulator heterointerfaces for various configurations. The (001)-oriented n-type VO_2/LaO/TiO_2 polar discontinuity is conducting, exhibiting a LaVO_3 thickness-dependent metal-insulator transition and low temperature anomalous Hall effect. The (001) p-type VO_2/SrO/TiO_2 interface, formed by inserting a single layer of bulk metallic SrVO_3 or SrO, drives the interface insulating. The (110) heterointerface is also insulating, indicating interface conduction arising from electronic reconstructions. Comment: 18 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0710.2174 Zobrazit plný text záznamu View this record from Arxiv