Resistive switching in Ferromagnetic La2/3Ca1/3MnO3 thin films

I. ALPOSTA; A. KALSTEIN; N. GHENZI; S. BENGIÓ; G. ZAMPIERI; D. RUBI; P. LEVY

Congreso; X Latin American Workshop in Magnetism, Magnetic Materials and their Applications (X-LAW3M),; 2013

Ferromagnetic thin films of manganite were grown by pulsed laser deposition, under different oxygen atmospheres,on silicon substrates.We performed structural, magnetic, spectroscopic, and electrical characterization of the films. Resistive switchingbetween high and low resistance states was obtained upon pulsing with opposite polarities voltages. The I-V curves exhibit sharp transitionsbetween these states. The RS properties are strongly dependant on the films oxygen stochiometry and on the compliance currentused for producing the high to low transition. ON/OFF ratios as high as 1000 were obtained for optimal RS conditions. Obtained resultsare discussed within the framework of mobile oxygen vacancies.