Conductivity and Local Structure of LaNiO₃ Thin Films

Jennifer Fowlie; Marta Gibert; Giulio Tieri; Alexandre Gloter; Jorge Íñiguez; Alessio Filippetti; Sara Catalano; Stefano Gariglio; Alexander Schober; Mael Guennou; Jens Kreisel; Odile Stéphan; Jean‐Marc Triscone

doi:10.1002/adma.201605197

journal article·2017-05Open access

Conductivity and Local Structure of LaNiO₃ Thin Films

Jennifer Fowlie, Marta Gibert, Giulio Tieri, Alexandre Gloter, Jorge Íñiguez, Alessio Filippetti, Sara Catalano, Stefano Gariglio, Alexander Schober, Mael Guennou, Jens Kreisel, Odile Stéphan, Jean‐Marc Triscone

Advanced Materials· Volume 29· Issue 18

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Source abstract

Abstract

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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Research context

OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Electronic and Structural Properties of Oxides · Ferroelectric and Piezoelectric Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

DQMP Université de Genève 24 Quai E.‐Ansermet 1211 Geneva Switzerland

Laboratoire de Physique des Solides CNRS UMR8502 Université Paris‐Sud 91405 Orsay France

Materials Research and Technology Department Luxembourg Institute of Science and Technology 41 Rue du Brill 4422 Belvaux Luxembourg

Istituto dei Materiali CNR‐IOM and Dipartimento di Fisica Università di Cagliari Monserrato 09042‐I Cagliari Italy

Physics and Materials Science Research Unit University of Luxembourg 41 Rue du Brill 4422 Belvaux Luxembourg

Funding

Seventh Framework Programme · Fonds National de la Recherche Luxembourg · European Research Council

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