Structure and magnetic property of the FePt/CrPt bilayer |
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Authors: | Wang Xiaoyu Wang Hai Jiang Hongwei Wang Peijie Wang Jinliang |
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Affiliation: | The Beijing Key Laboratory for Nano-Photonics and Nano-Structure, Department of Physics, Capital Normal University, Beijing 100048, People's Republic of China. |
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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 degrees. Meanwhile, magnetic analysis also revealed that the FePt/CrPt bilayer had much larger exchange bias (H(E)) and higher coercivity (Hc) when the CrPt layer was as the underlayer after annealing at 350 degrees. |
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