Magnetic Interaction at the Interface of Epitaxial Manganite Film and an Intermetallic Superlattice
Résumé
Abstract
Hybrid magnetic heterostructures made of epitaxial manganite La0.7Sr0.3 MnO3 thin film and an intermetallic superlattice (TeCo2/FeCo) n were prepared on orthorhombic NdGaO3 substrates and characterized by means of magneto-optical Kerr effect, magnetoresistance and ferromagnetic resonance. Experimental data show that magnetic interaction between La0.7Sr0.3MnO3 and (TeCo2/FeCo) n is of an antiferromagnetic nature. The features observed in magnetotransport characteristics are caused by the magnetization reversal at the interface between manganite thin film and intermetallic superlattice.