info:eu-repo/semantics/article
Mechanism of electric-pulse-induced resistance switching in manganites
Fecha
2007-12Registro en:
Quintero, Mariana Beatriz; Levy, Pablo Eduardo; Leyva, Adelma Graciela; Rozenberg, Marcelo Javier; Mechanism of electric-pulse-induced resistance switching in manganites; American Physical Society; Physical Review Letters; 98; 11; 12-2007; 1-4
0031-9007
CONICET Digital
CONICET
Autor
Quintero, Mariana Beatriz
Levy, Pablo Eduardo
Leyva, Adelma Graciela
Rozenberg, Marcelo Javier
Resumen
We investigate the electric-pulse-induced resistance switching in manganite systems. We find a "complementarity" effect where the contact resistance of electrodes at opposite ends show variations of opposite sign and is reversible. The temperature dependence of the magnitude of the effect reveals a dramatic enhancement at a temperature T*, below the metal-insulator transition. We qualitatively capture these features with a theoretical model, providing evidence for the physical mechanism of the resistance switching. We argue that doping control of the electronic state of the oxide at the interfaces is the mechanism driving the effect. © 2007 The American Physical Society.