Sammendrag
We observe an induced switchable magnetic moment of
1.6
±
0.40
μ
B
/
Fe
for the nominally antiferromagnetic
LaFe
O
3
extending two to four interface layers into the non–charge transfer system
L
a
0.7
S
r
0.3
Mn
O
3
/
LaFe
O
3
/
SrTi
O
3
(
111
)
. Simultaneously a mismatch of oxygen octahedra rotations at the interface implies an atomic reconstruction of reduced symmetry at the interface, reaching two to five layers into
LaFe
O
3
. Density functional theory of a structure with atomic reconstruction and different correlation strength shows a ferrimagnetic state with a net Fe moment at the interface. Together these results suggest that engineered oxygen octahedra rotations, affecting the local symmetry, affect electron correlations and can be used to promote magnetic properties.
1.6
±
0.40
μ
B
/
Fe
for the nominally antiferromagnetic
LaFe
O
3
extending two to four interface layers into the non–charge transfer system
L
a
0.7
S
r
0.3
Mn
O
3
/
LaFe
O
3
/
SrTi
O
3
(
111
)
. Simultaneously a mismatch of oxygen octahedra rotations at the interface implies an atomic reconstruction of reduced symmetry at the interface, reaching two to five layers into
LaFe
O
3
. Density functional theory of a structure with atomic reconstruction and different correlation strength shows a ferrimagnetic state with a net Fe moment at the interface. Together these results suggest that engineered oxygen octahedra rotations, affecting the local symmetry, affect electron correlations and can be used to promote magnetic properties.