title: Atomic layer engineering of perovskite oxides for chemically sharp heterointerfaces.
abstract: Atomic layer engineering enables fabrication of a chemically sharp oxide heterointerface. The interface formation and strain evolution during the initial growth of LaAlO(3) /SrTiO(3)  heterostructures by pulsed laser deposition are investigated in search of a means for controlling the atomic-sharpness of the interface. This study shows that inserting a monolayer of LaAlO(3)  grown at high oxygen pressure dramatically enhances interface abruptness.
authors.affiliation: Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
authors.forename: Woo Seok
authors.initials: WS
authors.lastname: Choi
authors.forename: Christopher M
authors.initials: CM
authors.lastname: Rouleau
authors.forename: Sung Seok A
authors.initials: SS
authors.lastname: Seo
authors.forename: Zhenlin
authors.initials: Z
authors.lastname: Luo
authors.forename: Hua
authors.initials: H
authors.lastname: Zhou
authors.forename: Timothy T
authors.initials: TT
authors.lastname: Fister
authors.forename: Jeffrey A
authors.initials: JA
authors.lastname: Eastman
authors.forename: Paul H
authors.initials: PH
authors.lastname: Fuoss
authors.forename: Dillon D
authors.initials: DD
authors.lastname: Fong
authors.forename: Jonathan Z
authors.initials: JZ
authors.lastname: Tischler
authors.forename: Gyula
authors.initials: G
authors.lastname: Eres
authors.forename: Matthew F
authors.initials: MF
authors.lastname: Chisholm
authors.forename: Ho Nyung
authors.initials: HN
authors.lastname: Lee
mesh_terms: D017607:Aluminum Compounds / Q000737:chemistry; D017610:Calcium Compounds / Q000737:chemistry*; D007700:Kinetics; D007811:Lanthanum / Q000737:chemistry; D010087:Oxides / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry*; D010313:Partial Pressure; D013324:Strontium / Q000737:chemistry; D014025:Titanium / Q000737:chemistry*
chemical_list: D017607:Aluminum Compounds; D017610:Calcium Compounds; D010087:Oxides; C059910:perovskite; D007811:Lanthanum; D014025:Titanium; C119252:strontium titanium oxide; D010100:Oxygen; D013324:Strontium