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dc.contributor.authorZheng, Wanchao
dc.contributor.authorZheng, Dongxing
dc.contributor.authorLi, Dong
dc.contributor.authorLi, Peng
dc.contributor.authorZhang, Linxing
dc.contributor.authorGong, Junlu
dc.contributor.authorPang, Xin
dc.contributor.authorJin, Chao
dc.contributor.authorZhang, Xixiang
dc.contributor.authorBai, Haili
dc.date.accessioned2020-01-02T08:20:29Z
dc.date.available2020-01-02T08:20:29Z
dc.date.issued2019-12-09
dc.identifier.citationZheng, W., Zheng, D., Li, D., Li, P., Zhang, L., Gong, J., … Bai, H. (2020). Strain control of phase transition and magnetic property in multiferroic BiFeO3 thin films. Thin Solid Films, 695, 137741. doi:10.1016/j.tsf.2019.137741
dc.identifier.doi10.1016/j.tsf.2019.137741
dc.identifier.urihttp://hdl.handle.net/10754/660918
dc.description.abstractBiFeO3 (BFO), a room-temperature antiferromagnetic-ferroelectric multiferroic, is widely researched due to its potential applications for electric-field control of the magnetism. In this work, the strain control of the phase transition and magnetic properties in the BFO/LaAlO3 heterostructures were investigated. The O K edge polarization-dependent X-ray absorption spectroscopy (XAS) spectra show that the Fe 3d level splits into five levels, which proves that the FeO5 pyramid is asymmetric in the highly strained tetragonal-like BFO. The spin canting induced by the asymmetric structure leads to the magnetic moment. Thus, an obvious magnetic signal in the 17-nm-thick BFO thin films was observed by the Quantum Design magnetic property measurement system. With the increase of the BFO film thickness, the clamping effect induced by the substrate becomes weak, further leading to the BFO phase transition. The O K edge polarization-dependent XAS spectra demonstrate that the orbital reconstruction exists at the mixed BFO phase boundaries. Since the orbital reconstructions can induce the strong magnetic coupling, the magnetic order of the different BFO phases will be coupled with each other. It causes a variation of the magnetic property at the phase boundaries or in the BFO phases.
dc.description.sponsorshipH.L.B. was supported by the National Natural Science Foundation of China (51772207 & 11434006). D.X.Z. was supported by the National Natural Science Foundation of China (11704278). P.L. and X.X.Z. acknowledge the financial support from King Abdullah University of Science and Technology (KAUST), Office of Sponsored Research (OSR) under the Award No. CRF-2015-SENSORS-2709 (KAUST). The authors acknowledge Professor Huanhua Wang and Associate Professor Yu Chen for valuable discussions. The authors acknowledge the Beijing Synchrotron Radiation Facility (1W1A and 4B9B beamlines, China), Shanghai Synchrotron Radiation Facility (08U1A beamline, China) and the National Synchrotron Radiation Laboratory (12B-a beamline, China) of the Chinese Academy of Sciences.
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0040609019307667
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Thin Solid Films. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Thin Solid Films, [[Volume], [Issue], (2019-12-09)] DOI: 10.1016/j.tsf.2019.137741 . © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleStrain control of phase transition and magnetic property in multiferroic BiFeO3 thin films
dc.typeArticle
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalThin Solid Films
dc.rights.embargodate2021-12-09
dc.eprint.versionPost-print
dc.contributor.institutionTianjin Key Laboratory of Low Dimensional Materials Physics and Processing Technology, School of Science, Tianjin University, Tianjin 300350, People's Republic of China
dc.contributor.institutionInstitute of Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
kaust.personLi, Peng
kaust.personZhang, Xixiang
kaust.grant.numberCRF-2015-SENSORS-2709
refterms.dateFOA2020-12-14T06:52:11Z
kaust.acknowledged.supportUnitOffice of Sponsored Research (OSR)
dc.date.published-online2019-12-09
dc.date.published-print2020-02


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