Interfacial Control of Magnetic Properties at LaMnO3/LaNiO3 Interfaces.
The functional properties of oxide heterostructures ultimately rely on how the electronic and structural mismatches occurring at interfaces are accommodated by the chosen materials combination. We discuss here LaMnO3/LaNiO3 heterostructures, which display an intrinsic interface structural asymmetry depending on the growth sequence. Using a variety of synchrotron-based techniques, we show that the degree of intermixing at the monolayer scale allows interface-driven properties such as charge transfer and the induced magnetic moment in the nickelate layer to be controlled. Further, our results demonstrate that the magnetic state of strained LaMnO3 thin films dramatically depends on interface reconstructions.
Département de Physique de la Matière Quantique, University of Geneva , Geneva, Switzerland.
M
M
Gibert
Département de Physique de la Matière Quantique, University of Geneva , Geneva, Switzerland.|Service de Physique de l'Etat Condensé, CNRS URA 2464 , CEA Saclay, Gif-sur-Yvette, France.
M
M
Viret
Laboratoire de Physique des Solides, University of Paris-Sud, CNRS-UMR 8502 , Orsay 91405, France.
A
A
Torres-Pardo
Swiss Light Source, Paul Scherrer Institute , 5232 Villigen-PSI, Switzerland.
C
C
Piamonteze
Département de Physique de la Matière Quantique, University of Geneva , Geneva, Switzerland.
P
P
Zubko
Synchrotron SOLEIL , 91192 Gif-Sur-Yvette, France.
N
N
Jaouen
CNRS, Institut Néel , 38042 Grenoble, France.
J-M
JM
Tonnerre
Laboratoire de Physique des Solides, University of Paris-Sud, CNRS-UMR 8502 , Orsay 91405, France.
A
A
Mougin
Département de Physique de la Matière Quantique, University of Geneva , Geneva, Switzerland.
J
J
Fowlie
Département de Physique de la Matière Quantique, University of Geneva , Geneva, Switzerland.
S
S
Catalano
Laboratoire de Physique des Solides, University of Paris-Sud, CNRS-UMR 8502 , Orsay 91405, France.
A
A
Gloter
Laboratoire de Physique des Solides, University of Paris-Sud, CNRS-UMR 8502 , Orsay 91405, France.
O
O
Stéphan
Département de Physique de la Matière Quantique, University of Geneva , Geneva, Switzerland.
J-M
JM
Triscone
Interface engineering; magnetism; manganites; nickelates