Journal article
Spatial control of functional properties via octahedral modulations in complex oxide superlattices
Nature communications, v 5(1), pp 5710-5710
15 Dec 2014
PMID: 25501927
Abstract
Control of atomic structure, namely the topology of the corner-connected metal-oxygen octahedra, has emerged as an important route to tune the functional properties at oxide interfaces. Here we investigate isovalent manganite superlattices (SLs), [(La(0.7)Sr(0.3)MnO(3))n/(Eu(0.7)Sr(0.3)MnO(3))n] × m, as a route to spatial control over electronic bandwidth and ferromagnetism through the creation of octahedral superstructures. Electron energy loss spectroscopy confirms a uniform Mn valence state throughout the SLs. In contrast, the presence of modulations of the MnO(6) octahedral rotations along the growth direction commensurate with the SL period is revealed by scanning transmission electron microscopy and X-ray diffraction. We show that the Curie temperatures of the constituent materials can be systematically engineered via the octahedral superstructures leading to a modulated magnetization in samples where the SL period is larger than the interfacial octahedral coupling length scale, whereas a single magnetic transition is observed in the short-period SLs.
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Details
- Title
- Spatial control of functional properties via octahedral modulations in complex oxide superlattices
- Creators
- E J Moon - Department of Materials Science and Engineering, Drexel University, 3141 Chestnut Street, 344 LeBow Engineering Building, Philadelphia, Pennsylvania 19104, USAR Colby - Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352, USAQ Wang - Lujan Neutron Scattering Center, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USAE Karapetrova - X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USAC M Schlepütz - X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USAM R Fitzsimmons - Lujan Neutron Scattering Center, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USAS J May - Department of Materials Science and Engineering, Drexel University, 3141 Chestnut Street, 344 LeBow Engineering Building, Philadelphia, Pennsylvania 19104, USA
- Publication Details
- Nature communications, v 5(1), pp 5710-5710
- Publisher
- Springer Nature; England
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000347229300006
- Scopus ID
- 2-s2.0-84923247209
- Other Identifier
- 991014878068304721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Physics, Applied