TY - JOUR
KW - Spectroscopy
KW - Oxygen
KW - Manganese oxide
KW - Heterostructures
KW - Manganese
KW - Ferromagnetism
KW - Exchange bias
KW - Ferromagnetic materials
KW - Antiferromagnets
KW - Dichroism
KW - X-ray magnetic circular dichroism
KW - Oxygen K-edge
KW - Ferromagnetic state
KW - Ferromagnets
KW - Magnetic state
KW - Electronic orbitals
KW - Ferromagnetic spin
KW - Linearly polarized
AU - P Yu
AU - J.-S Lee
AU - S Okamoto
AU - M.D Rossell
AU - M Huijben
AU - C.-H Yang
AU - Q He
AU - J.X Zhang
AU - S.Y Yang
AU - M.J Lee
AU - Q.M Ramasse
AU - R Erni
AU - Y.-H Chu
AU - D.A Arena
AU - C.-C Kao
AU - L.W Martin
AU - Ramamoorthy Ramesh
AB - We report the formation of a novel ferromagnetic state in the antiferromagnet BiFeO3 at the interface with ferromagnet La0.7Sr0.3MnO3. Using x-ray magnetic circular dichroism at Mn and Fe L2,3 edges, we discovered that the development of this ferromagnetic spin structure is strongly associated with the onset of a significant exchange bias. Our results demonstrate that the magnetic state is directly related to an electronic orbital reconstruction at the interface, which is supported by the linearly polarized x-ray absorption measurement at the oxygen K edge. © 2010 The American Physical Society.
BT - Physical Review Letters
DO - 10.1103/PhysRevLett.105.027201
LA - eng
M1 - 2
N1 - cited By 287
N2 - We report the formation of a novel ferromagnetic state in the antiferromagnet BiFeO3 at the interface with ferromagnet La0.7Sr0.3MnO3. Using x-ray magnetic circular dichroism at Mn and Fe L2,3 edges, we discovered that the development of this ferromagnetic spin structure is strongly associated with the onset of a significant exchange bias. Our results demonstrate that the magnetic state is directly related to an electronic orbital reconstruction at the interface, which is supported by the linearly polarized x-ray absorption measurement at the oxygen K edge. © 2010 The American Physical Society.
PY - 2010
T2 - Physical Review Letters
TI - Interface ferromagnetism and orbital reconstruction in BiFeO 3-La0.7Sr0.3MnO3 heterostructures
VL - 105
SN - 00319007
ER -