Title :
A study of the stability of Co-rich TbFeCo thin films
Author :
Gimenez, C. ; Urban, A. ; Vitton, J.P.
Author_Institution :
Kodak-Pathe, Chalon-sur-Saone, France
fDate :
3/1/1988 12:00:00 AM
Abstract :
The effect of cobalt-content on the stability of Tb(Fe1-xCox), (x varying from 40 to 100%) thin films (about 100 nm thick) was investigated in relation to structural, chemical, and magnetooptic (MO) properties. Unprotected and SiO-protected films were prepared by electron-beam coevaporation, MO hysteresis loops were obtained with a polar Kerr-effect measurement system. Low-energy X-ray microprobe analysis and induced coupled plasma techniques were used for chemical analysis and structural properties were studied by transmission electron microscopy. Incubation tests were performed to follow the aging of the samples. Static electrochemical tests were carried out to determine their resistance to corrosion. An explanation of the results is proposed based on both oxygen species diffusion and structural modifications.
Keywords :
Kerr magneto-optical effect; X-ray chemical analysis; ageing; cobalt alloys; corrosion; crystal atomic structure of alloys; electrochemistry; iron alloys; magnetic hysteresis; magnetic thin films; terbium alloys; transmission electron microscope examination of materials; TbFe1-xCox; X-ray microprobe analysis; aging; chemical analysis; corrosion resistance; diffusion; hysteresis loops; induced coupled plasma techniques; magneto-optical properties; polar Kerr-effect; static electrochemical tests; structural modifications; structural properties; thin film stability; transmission electron microscopy; Chemical analysis; Electrical resistance measurement; Hysteresis; Magnetic properties; Magnetooptic effects; Plasma measurements; Plasma properties; Stability; Testing; Transistors;
Journal_Title :
Magnetics, IEEE Transactions on
