Manipulating magnetoelectric properties by interfacial coupling in La0.3Sr0.7MnO3/Ba0.7Sr0.3TiO3 superlattices
Guo, HZ; Li, QQ; Yang, ZZ; Jin, KJ; Ge, C; Gu, L; He, X; Li, XL; Zhao, RQ; Wan, Q; Wang, JS; He, M; Wang, C; Lu, HB; Yang, YP; Yang, GZ
2017
发表期刊SCIENTIFIC REPORTS
ISSN2045-2322
卷号7期号:-页码:-
文章类型期刊论文
摘要Artificial superlattices constructed with ferromagnetic La0.7Sr0.3MnO3 layer and ferroelectric Ba0.7Sr0.3TiO3 layer were designed and fabricated on SrTiO3 substrates. An epitaxial growth with sharp interfaces between La0.7Sr0.3MnO3 and Ba0.7Sr0.3TiO3 layers was confirmed by scanning transmission electron microscopy and x-ray diffraction. An unambiguous charge transfer involving an electron transferring from the La0.7Sr0.3MnO3 layers to Ba0.7Sr0.3TiO3 layers (Mn3+-> Mn4+; Ti4+ -> Ti3+) across the interface were resolved by electron energy loss spectra analysis. These observations are attributed to the possible modification in the stereochemistry of the Ti and Mn ions in the interfacial region. The out-of-plane lattice parameter, Curie temperature, and magnetoresistance are strongly affected by the thicknesses of the La0.7Sr0.3MnO3 and Ba0.7Sr0.3TiO3 layers. Huge magnetoresistance subsisting to low temperature was also observed in the La0.7Sr0.3MnO3/Ba0.7Sr0.3TiO3 superlattices. All spectral changes identified at a nanometer scale and their potential effect on the degradation of magnetic and transport properties at a macroscopic level. These findings highlight the importance of dependence on sublayer thickness, illustrating the high degree of tenability in these artificially low-dimensional oxide materials.
关键词Oxide Interfaces Colossal Magnetoresistance Electronic-structures Metallic Ferromagnet Thin-films Manganites Heterostructures La0.7sr0.3mno3 La1-xsrxmno3 Magnetism
DOI10.1038/s41598-017-08260-y
关键词[WOS]OXIDE INTERFACES ; COLOSSAL MAGNETORESISTANCE ; ELECTRONIC-STRUCTURES ; METALLIC FERROMAGNET ; THIN-FILMS ; MANGANITES ; HETEROSTRUCTURES ; LA0.7SR0.3MNO3 ; LA1-XSRXMNO3 ; MAGNETISM
收录类别SCI
语种英语
WOS记录号WOS:000407294200050
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28725
专题中科院上海应用物理研究所2011-2018年
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Guo, HZ,Li, QQ,Yang, ZZ,et al. Manipulating magnetoelectric properties by interfacial coupling in La0.3Sr0.7MnO3/Ba0.7Sr0.3TiO3 superlattices[J]. SCIENTIFIC REPORTS,2017,7(-):-.
APA Guo, HZ.,Li, QQ.,Yang, ZZ.,Jin, KJ.,Ge, C.,...&Yang, GZ.(2017).Manipulating magnetoelectric properties by interfacial coupling in La0.3Sr0.7MnO3/Ba0.7Sr0.3TiO3 superlattices.SCIENTIFIC REPORTS,7(-),-.
MLA Guo, HZ,et al."Manipulating magnetoelectric properties by interfacial coupling in La0.3Sr0.7MnO3/Ba0.7Sr0.3TiO3 superlattices".SCIENTIFIC REPORTS 7.-(2017):-.
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