Resistance switching in silver - manganite contacts

P. LEVY

Iguazú. Argentina

Simposio; XIX SLAFES / INVITED TALK; 2008

SLAFES

INVITED TALKWe investigate the electric pulse induced resistance switching in a transition metaloxide-metal contact at room temperature - a non volatile, reversible and multilevel memory device. Using a simple multiterminal configuration, we find that the complementary effect in which the contact resistance of each pulsed electrode displays variations of opposite sign is strongly influenced by the history of the pulsing procedure. Loops performed by varying the magnitude and sign of the stimulus at each pulsed electrode allow to disentangle their sole contribution at different stages of the process. Electromigration of oxygen ions and vacanciesis discussed as participating at the core of the underlying mechanisms for resistance switching.