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journal article·2016-04-01Open access

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

Yaohua Liu, J. Tornos, S. G. E. te Velthuis, J. W. Freeland, H. Zhou, P. Steadman, P. Bencok, C. Leon, J. Santamaria

APL Materials· Volume 4· Issue 4
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Source abstract

Abstract

In artificial multiferroics hybrids consisting of ferromagnetic La0.7Sr0.3MnO3 (LSMO) and ferroelectric BaTiO3 epitaxial 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.
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Research context

Electronic materials

OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Multiferroics and related materials · Electronic and Structural Properties of Oxides

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Oak Ridge National Laboratory 1 Quantum Condensed Matter Division, , Oak Ridge, Tennessee 37831, USA

Argonne National Laboratory 2 Materials Science Division, , Argonne, Illinois 60439, USA

Universidad Complutense Madrid 3 GFMC, Instituto de Magnetismo Aplicado, , 28040 Madrid, Spain

Argonne National Laboratory 4 Advanced Photon Source, , Argonne, Illinois 60439, USA

Diamond Light Source 5 , Science Division, Didcot OX11 0DE, United Kingdom

Funding

Basic Energy Sciences, Materials Sciences and Engineering Division · Consolider Ingenio · Division of Scientific User Facilities of the Office of Basic Energy Sciences, US Department of Energy · Spanish MICINN

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