TY - JOUR
KW - Anisotropy
KW - Magnetic field
KW - Synthesis
KW - Thickness
KW - Manganese oxide
KW - Crystallography
KW - Density functional theory
KW - Metal oxide
KW - Magnetism
KW - Magnetic anisotropy
KW - Article
KW - Priority journal
KW - Lanthanum
KW - Strontium
KW - Circular dichroism
KW - Scanning transmission electron microscopy
KW - X-ray Diffraction
KW - Ferromagnetic material
KW - Iridium
KW - Chemical reaction
KW - Magnetometry
KW - Spin orbit coupling
KW - Temperature dependence
KW - X-ray absorption spectroscopy
AU - D Yia
AU - J F Liu
AU - S.-L Hsu
AU - L Zhang
AU - Y Choi
AU - J.-W Kim
AU - Z Chen
AU - J.D Clarkson
AU - C.R Serrao
AU - E Arenholz
AU - P.J Ryan
AU - H Xu
AU - R.J Birgeneau
AU - Ramamoorthy Ramesh
AB - Magnetic anisotropy (MA) is one of the most important material properties for modern spintronic devices. Conventional manipulation of the intrinsic MA, i.e., magnetocrystalline anisotropy (MCA), typically depends upon crystal symmetry. Extrinsic control over the MA is usually achieved by introducing shape anisotropy or exchange bias from another magnetically ordered material. Here we demonstrate a pathway to manipulate MA of 3d transition-metal oxides (TMOs) by digitally inserting nonmagnetic 5d TMOs with pronounced spin-orbit coupling (SOC). High-quality superlattices comprising ferromagnetic La2/3Sr1/3MnO3 (LSMO) and paramagnetic SrIrO3 (SIO) are synthesized with the precise control of thickness at the atomic scale. Magnetic easy-axis reorientation is observed by controlling the dimensionality of SIO, mediated through the emergence of a novel spin-orbit state within the nominally paramagnetic SIO.
BT - Proceedings of the National Academy of Sciences of the United States of America
DO - 10.1073/pnas.1524689113
LA - eng
M1 - 23
N1 - cited By 36
N2 - Magnetic anisotropy (MA) is one of the most important material properties for modern spintronic devices. Conventional manipulation of the intrinsic MA, i.e., magnetocrystalline anisotropy (MCA), typically depends upon crystal symmetry. Extrinsic control over the MA is usually achieved by introducing shape anisotropy or exchange bias from another magnetically ordered material. Here we demonstrate a pathway to manipulate MA of 3d transition-metal oxides (TMOs) by digitally inserting nonmagnetic 5d TMOs with pronounced spin-orbit coupling (SOC). High-quality superlattices comprising ferromagnetic La2/3Sr1/3MnO3 (LSMO) and paramagnetic SrIrO3 (SIO) are synthesized with the precise control of thickness at the atomic scale. Magnetic easy-axis reorientation is observed by controlling the dimensionality of SIO, mediated through the emergence of a novel spin-orbit state within the nominally paramagnetic SIO.
PB - National Academy of Sciences
PY - 2016
SP - 6397
EP - 6402
T2 - Proceedings of the National Academy of Sciences of the United States of America
TI - Atomic-scale control of magnetic anisotropy via novel spin-orbit coupling effect in La2/3Sr1/3MnO3/SrIrO3 superlattices
VL - 113
SN - 00278424
ER -