CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Interfacial-Strain-Induced Structural and Polarization Evolutions in Epitaxial Multiferroic BiFeO3 (001) Thin Films
Guo, HZ; Zhao, RQ; Jin, KJ; Gu, L; Xiao, DD; Yang, ZZ; Li, XL; Wang, L; He, X; Gu, JX; Wan, Q; Wang, C; Lu, HB; Ge, C; He, M; Yang, GZ
2015
Source PublicationACS APPLIED MATERIALS & INTERFACES
Volume7Issue:4Pages:2944—2951
Subtype期刊文献
AbstractVarying the film thickness is a precise route to tune the interfacial strain to manipulate the properties of the multiferroic materials. Here, to explore the effects of the interfacial strain on the properties of the multiferroic BiFeO3 films, we investigated thickness-dependent structural and polarization evolutions of the BiFeO3 films. The epitaxial growth with an atomic stacking sequence of BiO/TiO2 at the interface was confirmed by scanning transmission electron microscopy. Combining X-ray diffraction experiments and first-principles calculations, a thickness-dependent structural evolution was observed from a fully strained tetragonality to a partially relaxed one without any structural phase transition or rotated twins. The tetragonality (c/a) of the BiFeO3 films increases as the film thickness decreases, while the polarization is in contrast with this trend, and the size effect including the depolarization field plays a crucial role in this contradiction in thinner films. These findings offer an alternative strategy to manipulate structural and polarization properties by tuning the interfacial strain in epitaxial multiferroic thin films.
Keyword1st-principles Calculations Ferroelectric Properties Systems Phase
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24482
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Guo, HZ,Zhao, RQ,Jin, KJ,et al. Interfacial-Strain-Induced Structural and Polarization Evolutions in Epitaxial Multiferroic BiFeO3 (001) Thin Films[J]. ACS APPLIED MATERIALS & INTERFACES,2015,7(4):2944—2951.
APA Guo, HZ.,Zhao, RQ.,Jin, KJ.,Gu, L.,Xiao, DD.,...&Yang, GZ.(2015).Interfacial-Strain-Induced Structural and Polarization Evolutions in Epitaxial Multiferroic BiFeO3 (001) Thin Films.ACS APPLIED MATERIALS & INTERFACES,7(4),2944—2951.
MLA Guo, HZ,et al."Interfacial-Strain-Induced Structural and Polarization Evolutions in Epitaxial Multiferroic BiFeO3 (001) Thin Films".ACS APPLIED MATERIALS & INTERFACES 7.4(2015):2944—2951.
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