Electronic reconstruction and transport properties in SrTiO3/Sr1−xLaxTiO3 superlattice

Author

Ong, P.V. ; Lee, Jaichan

Author_Institution

Sch. of Mater. Sci. & Eng., Sungkyunkwan Univ., Suwon, South Korea

fYear

2010

fDate

9-12 Aug. 2010

Firstpage

1

Lastpage

3

Abstract

First-principles calculation was used to study the electronic structure and transport properties of SrTiO₃/Sr_1-xLa_xTiO₃ superlattice. We found that in comparison with bulk Sr_1-xLa_xTiO₃ electronic structure of the superlattice is dramatically changed and strongly depends on the SrTiO₃ thickness. This electronic reconstruction induces multi-type carriers which exhibit different transport characteristics. The possible functional enhancement is demonstrated.

Keywords

Fermi level; Seebeck effect; ab initio calculations; carrier density; conduction bands; lanthanum compounds; strontium compounds; superlattices; Seebeck coefficient; SrTiO₃-Sr_1-xLa_xTiO₃; electronic reconstruction; electronic structure; first-principles calculation; multitype carriers; superlattice; transport properties; Dispersion; Doping; Effective mass; Lattices; Stacking; Strontium; Superlattices; Oxide heterostructure; effective mass; electronic structure; first-princples; two-dimensional electron gas;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics (ISAF), 2010 IEEE International Symposium on the

Conference_Location

Edinburgh

ISSN

1099-4734

Print_ISBN

978-1-4244-8190-3

Electronic_ISBN

1099-4734

Type

conf

DOI

10.1109/ISAF.2010.5712236

Filename

5712236