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

doi:10.1063/1.4946756

Induced Ti magnetization at La_0.7Sr_0.3MnO₃ 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

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

In artificial multiferroics hybrids consisting of ferromagnetic La_0.7Sr_0.3MnO₃ (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.

Original language	English
Article number	046105
Journal	APL Materials
Volume	4
Issue number	4
DOIs	https://doi.org/10.1063/1.4946756
State	Published - Apr 1 2016

Funding

Work at ORNL is supported by the Division of Scientific User Facilities of the Office of Basic Energy Sciences (BES), US Department of Energy (DOE). Work at MSD, ANL was supported by the U.S. DOE, Office of Science, BES, Materials Sciences and Engineering Division. Research at UCM was supported by Spanish MICINN through Grant Nos. MAT2014-52405-C02-01 and Consolider Ingenio 2010-CSD2009-00013 (Imagine), by CAM through Grant No. S2014/MAT-PHAMA II.

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title = "Induced Ti magnetization at La0.7Sr0.3MnO3 and BaTiO3 interfaces",

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.",

author = "Yaohua Liu and J. Tornos and \{Te Velthuis\}, \{S. G.E.\} and Freeland, \{J. W.\} and H. Zhou and P. Steadman and P. Bencok and C. Leon and J. Santamaria",

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doi = "10.1063/1.4946756",

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T1 - Induced Ti magnetization at La0.7Sr0.3MnO3 and BaTiO3 interfaces

AU - Liu, Yaohua

AU - Tornos, J.

AU - Te Velthuis, S. G.E.

AU - Freeland, J. W.

AU - Zhou, H.

AU - Steadman, P.

AU - Bencok, P.

AU - Leon, C.

AU - Santamaria, J.

PY - 2016/4/1

Y1 - 2016/4/1

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/84966389647

U2 - 10.1063/1.4946756

DO - 10.1063/1.4946756

M3 - Article

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SN - 2166-532X

VL - 4

JO - APL Materials

JF - APL Materials

IS - 4

M1 - 046105

ER -

Induced Ti magnetization at La_0.7Sr_0.3MnO₃ and BaTiO₃ interfaces

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