Kimia Unpatti - Academia.edu (original) (raw)
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Conventional x-ray diffraction patterns were recorded and used for peak identification and phase ... more Conventional x-ray diffraction patterns were recorded and used for peak identification and phase determination of MBE multilayer Pt/FePt/Pt thin films on MgO single-crystal substrates. Results showed that both the FePt and the Pt layers were either epitaxially grown or strongly textured with the (110) planes parallel to the surfaces of the MgO (110) substrates. The FePt layer was ordered to the Ll, (AuCu I) phase. An extra strong peak at 30 " was identified to be the W2 peak of CuKa for the MgO (220) reflection. The h/2 peak was greatly reduced using a scintillation counter with a narrow PHA window. To eliminate the ?J2 peak completely, a Xe proportional counter with a high energy resolution of 28% was used. Intermetallic alloy thin films of FePt have recently been found to show promising characteristics for high density recording application.' Magnetic and magneto-optical properties of the films were found to correlate with film structure. 2,3,4 The ordered FePt phase with its c-axis in plane showed large magnetic anisotropy. The higher the order, the larger the anisotropy. In our laboratory, we used X-ray diffraction techniques to determine the structure of FePt films. Crystalline phases presented in the films was first identified using the conventional
Conventional x-ray diffraction patterns were recorded and used for peak identification and phase ... more Conventional x-ray diffraction patterns were recorded and used for peak identification and phase determination of MBE multilayer Pt/FePt/Pt thin films on MgO single-crystal substrates. Results showed that both the FePt and the Pt layers were either epitaxially grown or strongly textured with the (110) planes parallel to the surfaces of the MgO (110) substrates. The FePt layer was ordered to the Ll, (AuCu I) phase. An extra strong peak at 30 " was identified to be the W2 peak of CuKa for the MgO (220) reflection. The h/2 peak was greatly reduced using a scintillation counter with a narrow PHA window. To eliminate the ?J2 peak completely, a Xe proportional counter with a high energy resolution of 28% was used. Intermetallic alloy thin films of FePt have recently been found to show promising characteristics for high density recording application.' Magnetic and magneto-optical properties of the films were found to correlate with film structure. 2,3,4 The ordered FePt phase with its c-axis in plane showed large magnetic anisotropy. The higher the order, the larger the anisotropy. In our laboratory, we used X-ray diffraction techniques to determine the structure of FePt films. Crystalline phases presented in the films was first identified using the conventional