Abstract
Room-temperature multiferroic effects in organic materials have brought more attention in the area of organic spintronics and organic electronics in recent years. In this work, through fabricating MAPbI3/P3HT nanowire nanohybrid complex, the mechanisms of room-temperature ferromagnetism and magnetoelectric coupling are studied. The MAPbI3 layer provides substantial photogenerated carriers charging into the nw-P3HT layer, where the P3HT nanowire structure induces carrier spins aligning to generate room temperature ferromagnetism. Through controlling the strength of external electric field, magnetization of the MAPbI3/P3HT nanowire complex is modified due to the electric field driven carrier spins redistribution. Additionally, photon spin of circularly polarized light could interact with electron spin in organic multiferroics to enhance saturation magnetization at room temperature.
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