title: Electrostriction at the LaAlO3/SrTiO3 interface.
abstract: We present a direct comparison between experimental data and ab initio calculations for the electrostrictive effect in the polar LaAlO(3) layer grown on SrTiO(3) substrates. From the structural data, a complete screening of the LaAlO(3) dipole field is observed for film thicknesses between 6 and 20 uc. For thinner films, an expansion of the c axis of 2% matching the theoretical predictions for an electrostrictive effect is observed experimentally.
authors.affiliation: DPMC, University of Geneva, 24 Quai Ernest-Ansermet, 1211 Geneva 4, Switzerland. claudia.cancellieri@psi.ch
authors.forename: C
authors.initials: C
authors.lastname: Cancellieri
authors.forename: D
authors.initials: D
authors.lastname: Fontaine
authors.forename: S
authors.initials: S
authors.lastname: Gariglio
authors.forename: N
authors.initials: N
authors.lastname: Reyren
authors.forename: A D
authors.initials: AD
authors.lastname: Caviglia
authors.forename: A
authors.initials: A
authors.lastname: Fête
authors.forename: S J
authors.initials: SJ
authors.lastname: Leake
authors.forename: S A
authors.initials: SA
authors.lastname: Pauli
authors.forename: P R
authors.initials: PR
authors.lastname: Willmott
authors.forename: M
authors.initials: M
authors.lastname: Stengel
authors.forename: Ph
authors.initials: P
authors.lastname: Ghosez
authors.forename: J-M
authors.initials: JM
authors.lastname: Triscone