Interface-induced magnetic polar metal phase in complex oxides

Meng Meng, Zhen Wang, Aafreen Fathima, Saurabh Ghosh (), Mohammad Saghayezhian, Joel Taylor, Rongying Jin, Yimei Zhu, Sokrates T. Pantelides, Jiandi Zhang, E. W. Plummer () and Hangwen Guo ()
Additional contact information
Meng Meng: Louisiana State University
Zhen Wang: Louisiana State University
Aafreen Fathima: SRM Institute of Science and Technology
Saurabh Ghosh: SRM Institute of Science and Technology
Mohammad Saghayezhian: Louisiana State University
Joel Taylor: Louisiana State University
Rongying Jin: Louisiana State University
Yimei Zhu: Brookhaven National Laboratory
Sokrates T. Pantelides: Vanderbilt University
Jiandi Zhang: Louisiana State University
E. W. Plummer: Louisiana State University
Hangwen Guo: Louisiana State University

Nature Communications, 2019, vol. 10, issue 1, 1-7

Abstract: Abstract Polar metals are commonly defined as metals with polar structural distortions. Strict symmetry restrictions make them an extremely rare breed as the structural constraints favor insulating over metallic phase. Moreover, no polar metals are known to be magnetic. Here we report on the realization of a magnetic polar metal phase in a BaTiO3/SrRuO3/BaTiO3 heterostructure. Electron microscopy reveals polar lattice distortions in three-unit-cells thick SrRuO3 between BaTiO3 layers. Electrical transport and magnetization measurements reveal that this heterostructure possesses a metallic phase with high conductivity and ferromagnetic ordering with high saturation moment. The high conductivity in the SrRuO3 layer can be attributed to the effect of electrostatic carrier accumulation induced by the BaTiO3 layers. Density-functional-theory calculations provide insights into the origin of the observed properties of the thin SrRuO3 film. The present results pave a way to design materials with desired functionalities at oxide interfaces.

Date: 2019
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-019-13270-7 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-13270-7

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-019-13270-7

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().