title: Nanoscale electrostatic manipulation of magnetic flux quanta in ferroelectric/superconductor BiFeO3/YBa2Cu3O(7-δ) heterostructures.
abstract: Using heterostructures that combine a large-polarization ferroelectric (BiFeO3) and a high-temperature superconductor (YBa2Cu3O(7-δ)), we demonstrate the modulation of the superconducting condensate at the nanoscale via ferroelectric field effects. Through this mechanism, a nanoscale pattern of normal regions that mimics the ferroelectric domain structure can be created in the superconductor. This yields an energy landscape for magnetic flux quanta and, in turn, couples the local ferroelectric polarization to the local magnetic induction. We show that this form of magnetoelectric coupling, together with the possibility to reversibly design the ferroelectric domain structure, allows the electrostatic manipulation of magnetic flux quanta.
authors.affiliation: Unité Mixte de Physique CNRS/Thales, 1 Avenue Augustin Fresnel, Campus de l'Ecole Polytechnique, 91767 Palaiseau and Université Paris Sud 11, 91405 Orsay, France.
authors.forename: Arnaud
authors.initials: A
authors.lastname: Crassous
authors.forename: Rozenn
authors.initials: R
authors.lastname: Bernard
authors.forename: Stéphane
authors.initials: S
authors.lastname: Fusil
authors.forename: Karim
authors.initials: K
authors.lastname: Bouzehouane
authors.forename: David
authors.initials: D
authors.lastname: Le Bourdais
authors.forename: Shaïma
authors.initials: S
authors.lastname: Enouz-Vedrenne
authors.forename: Javier
authors.initials: J
authors.lastname: Briatico
authors.forename: Manuel
authors.initials: M
authors.lastname: Bibes
authors.forename: Agnès
authors.initials: A
authors.lastname: Barthélémy
authors.forename: Javier E
authors.initials: JE
authors.lastname: Villegas