Title :
Microstructure and magnetic properties of oxidized Fe-Pt films with high rate order-disorder transformation
Author :
Na, Kyung-Hwan ; Na, Jong-Gab ; Kim, Hi-Jung ; Jang, Pyung-Woo ; Kim, Jong-Ryoul ; Lee, Sung-Rae
Author_Institution :
Thin Film Technol. Res. Center, Korea Inst. of Sci. & Technol., Seoul, South Korea
fDate :
7/1/2001 12:00:00 AM
Abstract :
Structural and magnetic properties of air-annealed Fe1-xPtx films with a high rate order-disorder transformation were analyzed by transmission electron microscopy, Auger electron microscopy, Rutherford backscattering spectroscopy and vibrating sample magnetometer. The air-annealed films consisted of three layers, that is, crystalline Fe oxide layer, Fe-Pt upper layer with small grains, and Fe-Pt bottom layer with large grains from the film surface. Those layers were nonmagnetic, magnetically hard, and with magnetically hard and soft phase, respectively. The Fe content in Fe-Pt metallic layer decreased and then increased with increasing film depth from the oxide/metal interface
Keywords :
Auger electron spectra; Rutherford backscattering; annealing; coercive force; grain size; iron alloys; magnetic thin films; order-disorder transformations; oxidation; platinum alloys; sputtered coatings; transmission electron microscopy; Auger electron microscopy; Fe-Pt; Fe1-xPtx film; Rutherford backscattering spectroscopy; air annealing; coercivity; grain size; magnetic properties; microstructure; order-disorder transformation; oxidation; sputter deposition; structural properties; transmission electron microscopy; vibrating sample magnetometry; Backscatter; Iron; Magnetic analysis; Magnetic films; Magnetic force microscopy; Magnetic properties; Magnetometers; Microstructure; Spectroscopy; Transmission electron microscopy;
Journal_Title :
Magnetics, IEEE Transactions on
