Graphic Interface Implementation for Studying Magnetotransport Properties in Bilayers of Manganites Type Perovskite

摘要

In this work, a study of some magnetotransport properties of manganitebilayers of ferromagnetic/Antiferromagnetic (FM/AF) La2=3Ca1=3MnO3/La1=3Ca2=3MnO3 is presented. This study was carries out using the MonteCarlo method combined with Drude and Kronig-Penney models. For doingthe simulations, graphic interfaces for allowing a suitable user interactionwere developed. These interfaces also allow observing the simulationprocesses in real time. Results of resistivity and magnetoresistance as afunction on the temperature and the external magnetic field were obtained.The resistivity depending on the temperature presented a minimum aroundthe canted temperature and a maximum around the Curie temperature,TC. A decrease in the resistivity and an increase in the magnetoresistanceas the external magnetic field increases were observed. On the other hand,resistivity as a function on the temperature showed symmetry for positiveand negative values of the external magnetic field. Moreover, at low temperatures,below TC, the resistivity presented a splitting, producing twomaxima and forming hysteresis loops.PACS:02.70.Uu,75.70.Cn, 28.41.Ak, 75.47.Lx, 75.47.Gk