Reference : Conductivity and Local Structure of LaNiO3 Thin Films
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
Physics and Materials Science
Conductivity and Local Structure of LaNiO3 Thin Films
Fowlie, Jennifer [> >]
Gibert, Marta [> >]
Tieri, Giulio [> >]
Alexandre, Gloter [> >]
Iniguez, Jorge [> >]
Filippetti, Alessio [> >]
Catalano, Sara [> >]
Gariglio, Stefano [> >]
Schober, Alexander [> >]
Guennou, Mael mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit]
Kreisel, Jens mailto [University of Luxembourg > Rectorate >]
Stephan, Odile [> >]
Triscone, Jean-Marc [> >]
Advanced Materials
Yes (verified by ORBilu)
[en] A marked conductivity enhancement is reported in 6-11 unit cell LaNiO3 thin films. A maximal conductivity is also observed in ab initio calculations for films of the same thickness. In agreement with results from state of the art scanning transmission electron microscopy, the calculations also reveal a differentiated film structure comprising characteristic surface, interior, and heterointerface structures. Based on this observation, a three-element parallel conductor model is considered and leads to the conclusion that the conductivity enhancement for films of 6-11 unit cells, stems from the onset of intercompetition between the three local structures in the film depth.

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