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Induced Ti magnetization at La0.7Sr0.3MnO3 and BaTiO3 interfaces

DOI: 10.1063/1.4946756 DOI Help

Authors: Yaohua Liu (Oak Ridge National Laboratory) , Javier Tornos (Complutense University of Madrid) , S. G. E. Te Velthuis (Argonne National Laboratory) , J. W. Freeland (Argonne National Laboratory) , H. Zhou (Argonne National Laboratory) , Paul Steadman (Diamond Light Source) , Peter Bencok (Diamond Light Source) , C. Leon (Complutense University of Madrid) , J. Santamaria (Complutense University of Madrid)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Apl Materials , VOL 4

State: Published (Approved)
Published: April 2016

Abstract: In artificial multiferroics hybrids consisting of ferromagnetic La0.7Sr0.3MnO3 (LSMO) and ferroelectric BaTiO3epitaxial layers, net Ti moments are found from polarized resonant soft x-ray reflectivity and absorption. The Ti dichroic reflectivity follows the Mn signal during the magnetization reversal, indicating exchange coupling between the Ti and Mn ions. However, the Ti dichroic reflectivity shows stronger temperature dependence than the Mn dichroic signal. Besides a reduced ferromagnetic exchange coupling in the interfacial LSMO layer, this may also be attributed to a weak Ti-Mn exchange coupling that is insufficient to overcome the thermal energy at elevated temperatures.

Subject Areas: Physics


Instruments: I10-Beamline for Advanced Dichroism

Added On: 19/04/2016 15:36

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