Aller au menu Aller au contenu
Physico chemistry of solids, thin films, biotechnologies
Applications for micro & nano- technologies, energy, health ...

> Research > Research-NanoMAT

A study on the memristive properties of lanthanum nickel oxide bilayers in the front cover of "Journal of Materials Chemistry A"

Published on March 23, 2022
A+Augmenter la taille du texteA-Réduire la taille du texteImprimer le documentEnvoyer cette page par mail cet article Facebook Twitter Linked In
Communique from March 23, 2022 to June 22, 2022

This study reveals the optimal film growth conditions to obtain memristive behaviour at the interface between oxygen ionic conducting La2NiO4 and electronic conducting LaNiO3 epitaxial layers

CouvertureJMCABurriel2022

CouvertureJMCABurriel2022

A research on the electrical transport properties of La2NiO4/LaNiO3 bilayers conducted by LMGP and ICN2 and published in Journal of Materials Chemistry A has been featured on the front cover of the journal. The study reveals the optimal film growth conditions of La2NiO4 and LaNiO3 epitaxial bilayers obtained by pulsed laser deposition to exhibit memristive behaviour at the interface between the oxygen ionic and the electronic conducting layers. Depending on the film microstructure and under an applied external voltage, the oxygen interstitials present in overstoichiometric La2NiO4+d reversibly drift towards (or from) the interface with LaNiO3 accumulating at (or depleting from) the interface. Therefore, the characteristics of the interfacial electrical barrier can be modulated for the device to show enhanced memristive properties. This work draws the attention to mobile interstitial oxygen defects as an additional ingredient in valence change memory devices, typically based on mobile oxygen vacancies.

This work was coordinated by Oxides for Nanoionic Devices group leader Dr. Monica Burriel from LMGP (CNRS, Grenoble-INP) and by Nanomaterials group leader Dr. José Santiso from ICN2 (Barcelona, Spain). The art work on this cover is by Damaso Torres (ICN2).
A+Augmenter la taille du texteA-Réduire la taille du texteImprimer le documentEnvoyer cette page par mail cet article Facebook Twitter Linked In

Date of update March 24, 2022

Université Grenoble Alpes