Resistive Switching In Ag-TiO2 Contacts

GHENZI N. F.; FERNANDO GOMEZ MARLASCA; PABLO STOLIAR; PABLO LEVY

Congreso; At the Frontiers of Condensed Matter; 2010

We study the electric pulse induced resistanceswitching of TiO2-Ag contacts at room tem-perature, exploring both unipolar and bipolarswitching modes. Initially we observed unipo-lar response. After hundred pulsing cycles theunipolar switching response vanishes but thedevice can still be operated in bipolar switch-ing regime. The underlying mechanism forresistance switching is modeled in terms offormation and rupture of lament, and move-ment of oxygen vacancies.