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Synthèse et propriétés de monocristaux, de poudres, films minces ou hétérostructures

Etudes à l'interface avec la matière biologique

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Nouvel article FM2N Michel Boudard

Publié le 9 juillet 2016
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Communiqué 5 juillet 2016

Le papier "Transport mechanism through metal-cobaltite interfaces" a été publié dans Applied Physics Letters

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acha2016.jpg

Ici vous vous trouverez le papier de Michel Boudard

"The resistive switching (RS) properties as a function of temperature were studied for
Ag/La1xSrxCoO3 (LSCO) interfaces. The LSCO is a fully relaxed 100 nm film grown by metal organic deposition on a LaAlO3 substrate. Both low and a high resistance states were set at room temperature, and the temperature dependence of their current-voltage (IV) characteristics was measured taking care to avoid a significant change of the resistance state. The obtained non-trivial IV curves of each state were well reproduced by a circuit model which includes a Poole-Frenkel element and two ohmic resistances. A microscopic description of the changes produced by the RS is given, which enables to envision a picture of the interface as an area where conductive and insulating phases are mixed, producing Maxwell-Wagner contributions to the dielectric properties.
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mise à jour le 16 octobre 2019

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