Magnetic properties of Manganite/Iridate bilayers.
ORAL
Abstract
The relationship between spin-orbit coupling (SOC), emergent topological states, and spin Hall effects, which are highly relevant for spintronics, has driven the interest in materials with strong SOC in recent years. To probe the influence of SOC at 3d-5d complex oxide interfaces, we have investigated ferromagnetic La0.7Sr0.3MnO3/SrIrO3 bilayers deposited on SrTiO3. We find that depending on the growth order, the coercive field of the magnetization loop differs significantly at low temperatures. Similar to previous reports, a net moment on Ir has been recorded with element specific XMCD experiments, which is aligned antiparallel to the Mn moments within the manganite. We find that the Ir moment does not follow the same temperature dependence as the magnetization of the manganite, and is limited to the interface. Possible origins of this result will be discussed.
*Work at Argonne National Laboratory was supported by the U.S. DOE, Office of Science, BES, MSED. This research used resources of the Advanced Photon Source, a U.S. DOE, Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. Neutron scattering at the Spallation Neutron Source at ORNL was supported by the DOE, Office of Science, BES.
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Presenters
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Suzanne G.E. te Velthuis
- Materials Science Division, Argonne National Laboratory