FIBER TEXTURE AND MAGNETIC ANISOTROPY IN IRON FILMS. Technical Report No. 14 on SOLID STATE PHYSICS PROGRAM
Technical Report
·
OSTI ID:4033260
The fiber texture and uniaxial magnetic anisotropy of evaporated iron films was studied as a function of film thickness. It is found that there are three textures present: STA110!, STA111!, and STA221!. In thin films, the STA111! texture is dominant. It is found that the magnetic anisotropy is on the order of 2 x 10/sup 4/ ergs/cm/sup 3/ for 350-A films, and that it decreases for thicker films. On the basis of the experiment, and information from earlier experiments, several theories of the origin of magnetic anisotropy in films are examined, and shown to be inadequate for iron films. A theory for the origin of this effect is proposed, based primarily on the magnetic energy associated with an array of oriented vacancy needles. The vacancy needles can also qualitatively explain the resistivity anisotropy and dichroism. (auth)
- Research Organization:
- Case Inst. of Tech., Cleveland
- NSA Number:
- NSA-15-023975
- OSTI ID:
- 4033260
- Report Number(s):
- TID-13033
- Country of Publication:
- United States
- Language:
- English
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Wed Dec 31 23:00:00 EST 1975
· AIP (Am. Inst. Phys.) Conf. Proc.; (United States)
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OSTI ID:7125153