Structural and transport properties characterisation of multilayered AFM/FM films for spintronic devices grown by pulsed laser ablation

F. GOLMAR; F. D. SACCONE; C. E. RODRÍGUEZ TORRES; L. FRAIGI

Buenos Aires

Congreso; FCM2008 - At the Frontiers of Condensed Matter IV - Current Trends and Novel Materials; 2008

CAC-CNEA

In this work, we show experimental transport properties of multilayered thin films, growth by pulsed laser ablation techniques (PLD). The selected system was AFM/FM/NM/FM multilayered films (AFM and FM=anti and ferromagnetic, NM= non-magnetic). As the AFM layer we used CoFe2O4, while for the FM films we deposited Fe, NiFe and CoFe2. For the NM layer, we selected Al and some oxides like TiO2 and ZnO. Microscopies like atomic and scanning, revealed good quality interfaces with low roughness. The multilayers are magnetorresistive with good repetitiveness, in both, field and temperature dependence. I-V curves of CoFe2O4/Fe/Al/Fe multilayers show some interesting hysteretic behaviour for applications as non volatile memories.