Conductivity and Local Structure of LaNiO<sub>3</sub> Thin Films

Article Article scientifique Article Conductivity and Local Structure of LaNiO<sub>3</sub> Thin Films eng 2017 author Fowlie Jennifer 811056 author Gibert Marta author Tieri Giulio 831349 author Gloter Alexandre author Iniguez Jorge 847752 author Filippetti Alessio author Catalano Sara 783030 author Gariglio Stefano 0000-0001-8263-4506 508404 author Schober Alexander 655947 author Guennou Mael author Kreisel Jens author Stéphan Odile author Triscone Jean-Marc 21933 1605197 10.1002/adma.201605197 0935-9648 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. Dewey 500.2 33 Département de physique de la matière quantique 131 false 784 Groupe Triscone Advanced Materials 29 18 b1001af0-0e6e-44e2-9b6b-32f8f7febd27 Article (Published version) Restricted adma.201605197.pdf 1240854 application/pdf restrictedAccess Faculté des sciences / Section de physique / Département de physique de la matière quantique

Title	Published in	Access level	OA Policy	Year	Views	Downloads

Conductivity and Local Structure of LaNiO₃ Thin Films	Advanced Materials			2017	685	8

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Schober, Alexander