Ruddlesden-Popper interface in correlated manganite heterostructures induces magnetic decoupling and dead layer reduction
2016 | journal article; research paper. A publication with affiliation to the University of Göttingen.
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Ruddlesden-Popper interface in correlated manganite heterostructures induces magnetic decoupling and dead layer reduction
Belenchuk, A.; Shapoval, O.; Roddatis, V. ; Bruchmann-Bamberg, V.; Samwer, K. H. & Moshnyaga, V. T. (2016)
Applied Physics Letters, 109(23) art. 232405. DOI: https://doi.org/10.1063/1.4971833
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- Authors
- Belenchuk, A.; Shapoval, O.; Roddatis, Vladimir ; Bruchmann-Bamberg, V.; Samwer, Konrad H. ; Moshnyaga, Vasily T.
- Abstract
- We report on the interface engineering in correlated manganite heterostructures by octahedral decoupling using embedded stacks of atomic layers that form the Ruddlesden-Popper structure. A room temperature magnetic decoupling was achieved through deposition of a (SrO)(2)-TiO2-(SrO)(2) sequence of atomic layers at the interface between La0.7Sr0.3MnO3 and La0.7Sr0.3Mn0.9Ru0.1O3 films. Moreover, the narrowing of the interfacial dead layer in ultrathin La0.7Sr0.3MnO3 films was demonstrated by insertion of a single (SrO)(2) rock-salt layer at the interface with the SrTiO3(100) substrate. The obtained results are discussed based on the symmetry breaking and disconnection of the MnO6 octahedra network at the interface that may lead to the improved performance of all-oxide magnetic tunnel junctions. We suggest that octahedral decoupling realized by formation of Ruddlesden-Popper interfaces is an effective structural mechanism to control functionalities of correlated perovskite heterostructures. Published by AIP Publishing.
- Issue Date
- 2016
- Journal
- Applied Physics Letters
- Project
- SFB 1073: Kontrolle von Energiewandlung auf atomaren Skalen
SFB 1073 | Topical Area B | B04 External field control of photon energy conversion in manganites - Organization
- Institut für Materialphysik
- ISSN
- 1077-3118; 0003-6951
- Sponsor
- Deutsche Forschungsgemeinschaft (DFG) [SFB 1073]