Title :
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
Abstract :
First-principles calculation was used to study the electronic structure and transport properties of SrTiO3/Sr1-xLaxTiO3 superlattice. We found that in comparison with bulk Sr1-xLaxTiO3 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-Sr1-xLaxTiO3; 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;
Conference_Titel :
Applications of Ferroelectrics (ISAF), 2010 IEEE International Symposium on the
Conference_Location :
Edinburgh
Print_ISBN :
978-1-4244-8190-3
Electronic_ISBN :
1099-4734
DOI :
10.1109/ISAF.2010.5712236
