Thermal effects on the switching kinetics of silver/manganite memristive systems J. Phys. D: Appl. Phys. 47, 435304 (2014).

P. STOLIAR; M. J. SANCHEZ; G. A. PATTERSON, P. I. FIERENS

JOURNAL OF PHYSICS - D (APPLIED PHYSICS)

IOP PUBLISHING LTD

Año: 2014 vol. 47 p. 435304 - 435309

0022-3727

We investigate the switching kinetics of oxygen vacancy (Ov) diffusion in La(5/8-y)Pr(y)Ca(3/8)MnO(3)-Ag (LPCMO?Ag) memristive interfaces by performing experiments on thetemperature dependence of the high resistance state under thermal cycling. Experimentalresults are well reproduced by numerical simulations based on thermally activated Ov diffusionprocesses and fundamental assumptions relying on a recent model proposed to explain bipolarresistive switching in manganite-based cells. The confident values obtained for activationenergies and the diffusion coefficient associated to Ov dynamics constitute a validation test forboth model predictions and Ov diffusion mechanisms in memristive interfaces.