Structure and Magnetic Property of the FePt/CrPt Bilayer
Abstract:In this work we have studied the growth sequence of L10-CrPt antiferromagnetic layer effects on the microstructure and magnetic properties of the FePt/CrPt bilayer. The microstructure characteristics were investigated by means of X-ray diffraction and the magnetic properties were measured at room temperature by using a vibrating sample magnetometer. Structural analysis showed that the low-temperature ordering and the in-plane orientation of the FePt layer with the CrPt underlayer were promoted due to lattice mismatch optimized after annealing at 350°. Meanwhile, magnetic analysis also revealed that the FePt/CrPt bilayer had much larger exchange bias (H E) and higher coercivity (H c) when the CrPt layer was as the underlayer after annealing at 350°.
Document Type: Research Article
Publication date: February 1, 2012
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