Tailoring surface phase transition and magnetic behaviors in BiFeO3 via doping engineering

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Tailoring surface phase transition and magnetic behaviors in BiFeO3 via doping engineering

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Title: Tailoring surface phase transition and magnetic behaviors in BiFeO3 via doping engineering
Author: Yan, Feng; Xing, Guozhong; Wang, Rongming; Li, Lin

Note: Order does not necessarily reflect citation order of authors.

Citation: Yan, Feng, Guozhong Xing, Rongming Wang, and Lin Li. 2015. “Tailoring surface phase transition and magnetic behaviors in BiFeO3 via doping engineering.” Scientific Reports 5 (1): 9128. doi:10.1038/srep09128. http://dx.doi.org/10.1038/srep09128.
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Abstract: The charge-spin interactions in multiferroic materials (e.g., BiFeO3) have attracted enormous attention due to their high potential for next generation information electronics. However, the weak and deficient manipulation of charge-spin coupling notoriously limits their commercial applications. To tailor the spontaneous charge and the spin orientation synergistically in BiFeO3 (BFO), in this report, the 3d element of Mn doping engineering is employed and unveils the variation of surface phase transition and magnetic behaviors by introducing chemical strain. The spontaneous ferroelectric response and the corresponding domain structures, magnetic behaviors and spin dynamics in Mn-doped BFO ceramics have been investigated systematically. Both the surface phase transition and magnetization were enhanced in BFO via Mn doping. The interaction between the spontaneous polarization charge and magnetic spin reorientation in Mn-doped BFO are discussed in detail. Moreover, our extensive electron paramagnetic resonance (EPR) results demonstrate that the 3d dopant plays a paramount role in the surface phase transition, which provides an alternative route to tune the charge-spin interactions in multiferroic materials.
Published Version: doi:10.1038/srep09128
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4360736/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:14351164
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