ISSN:
1572-9486
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract To examine the pressure dependence of magnetic characteristics of Fe and Ni films, the films were prepared in vacuum ranging from 10−5 to 10−2 torr. Saturation magnetizationM s * , perpendicular anisotropyK ⊥ * and coercive forceH c for Fe and Ni films deposited at around 10−5 torr were in good agreement with the values obtained by others. When the film thickness was less than 500 Å,M s * for Fe films increased with pressure, while it decreased monotonically for Ni films. At pressures between 2×10−3 and 10−2 torr,M s * decreased rapidly for Fe but it increased slightly for Ni. This interesting behaviour was most marked with film thickness of about 500 Å. Corresponding to the change inM s * , bothK ⊥ * andH c also changed with deposition pressure. The result should be explained in terms of the presence of Fe4N, Fe8N and Ni3N, as well as the macroscopic and microscopic structures of films.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01691559
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