TY - JOUR
KW - Manganese compounds
KW - Manganese
KW - Lanthanum compounds
KW - Ferromagnetism
KW - Ferromagnetic materials
KW - Iridium compounds
KW - Strontium compounds
KW - Antiferromagnetism
KW - Dichroism
KW - Metal insulator boundaries
KW - Molecular orbitals
KW - Quantum entanglement
KW - Semiconductor insulator boundaries
KW - Spin polarization
KW - Transition metal oxides
KW - Antiferromagnetic orderings
KW - Electronic and magnetic properties
KW - Electronic configuration
KW - Heterostructure designs
KW - Spin orbit interactions
KW - Spin-polarized electrons
KW - Strong electron correlations
KW - X-ray magnetic circular dichroism
KW - Metal insulator transition
AU - J.-W Kim
AU - Y Choi
AU - S.H Chun
AU - D Haskel
AU - D Yi
AU - Ramamoorthy Ramesh
AU - J F Liu
AU - P.J Ryan
AB - The combination of strong electron correlations in 3d transition-metal oxides and spin-orbit interactions in the 5d counterpart can give rise to exotic electronic and magnetic properties. Here, the nature of emerging phenomena at the interface between SrIrO3 (SIO) and La2/3Sr1/3MnO3 (LSMO) is presented. Nominally, SIO with strong spin-orbit interaction is metallic and nonmagnetic on the verge of a metal-insulator transition, whereas LSMO is metallic and ferromagnetic with itinerant character and high spin polarization. In the 1:1 LSMO/SIO superlattice, we observe ferromagnetic Mn moments with an insulating behavior, accompanied by antiferromagnetic ordering in SIO. Element-resolved x-ray magnetic circular dichroism proves that there is a weak net ferromagnetic Ir moment aligned antiparallel to the Mn counterpart. The branching ratio shows the formation of molecular orbitals between the Mn and Ir layers modifying the Ir 5d electronic configuration through the mixture of t2g and eg states, resulting in a deviation from Jeff=1/2. This result demonstrates a pathway to manipulate the spin-orbit entanglement in 5d states with two-dimensional 3d spin-polarized electrons through heterostructure design. © 2018 American Physical Society.
BT - Physical Review B
DO - 10.1103/PhysRevB.97.094426
LA - eng
M1 - 9
N1 - cited By 5
N2 - The combination of strong electron correlations in 3d transition-metal oxides and spin-orbit interactions in the 5d counterpart can give rise to exotic electronic and magnetic properties. Here, the nature of emerging phenomena at the interface between SrIrO3 (SIO) and La2/3Sr1/3MnO3 (LSMO) is presented. Nominally, SIO with strong spin-orbit interaction is metallic and nonmagnetic on the verge of a metal-insulator transition, whereas LSMO is metallic and ferromagnetic with itinerant character and high spin polarization. In the 1:1 LSMO/SIO superlattice, we observe ferromagnetic Mn moments with an insulating behavior, accompanied by antiferromagnetic ordering in SIO. Element-resolved x-ray magnetic circular dichroism proves that there is a weak net ferromagnetic Ir moment aligned antiparallel to the Mn counterpart. The branching ratio shows the formation of molecular orbitals between the Mn and Ir layers modifying the Ir 5d electronic configuration through the mixture of t2g and eg states, resulting in a deviation from Jeff=1/2. This result demonstrates a pathway to manipulate the spin-orbit entanglement in 5d states with two-dimensional 3d spin-polarized electrons through heterostructure design. © 2018 American Physical Society.
PB - American Physical Society
PY - 2018
T2 - Physical Review B
TI - Controlling entangled spin-orbit coupling of 5d states with interfacial heterostructure engineering
VL - 97
SN - 24699950
ER -