Magnetic anisotropy in single-crystal nickel films

Content Provider	Scilit
Author	Secemski, E. Anderson, J. C.
Copyright Year	1971
Description	Journal: Journal of Physics D: Applied Physics Single-crystal films of nickel have been deposited in ultra high vacuum under closely controlled conditions, with a resulting high standard of lattice perfection as determined by electron microscopy. Anisotropy measurements made by torque magnetometry yielded the following conclusions: K$ _{1}$ has the same value as for bulk nickel (−5·0 × $10^{4}$ erg $cm^{−3}$ at room temperature). The magnetostrictive behaviour is predictable from bulk properties. An estimate of the order of K$ _{3}$ is also obtained (−3 × $10^{3}$ erg $cm^{−3}$). K$ _{u}$ can be reduced to extremely low levels by taking steps to exclude all known mechanisms. The effect of stress on both K$ _{1}$ and K$ _{u}$ have been investigated and correlated. A constraint temperature (about 110°C), well below the substrate temperature during deposition, has been established. No contribution to K$ _{u}$ from mechanisms involving oxygen has been observed. The effects of lattice imperfections are quite marked, and can be the predominant K$ _{u}$ source.
Related Links	http://iopscience.iop.org/article/10.1088/0022-3727/4/4/316/pdf
ISSN	00223727
e-ISSN	13616463
DOI	10.1088/0022-3727/4/4/316
Journal	Journal of Physics D: Applied Physics
Issue Number	4
Volume Number	4
Language	English
Publisher	IOP Publishing
Publisher Date	1971-04-01
Access Restriction	Open
Subject Keyword	Journal: Journal of Physics D: Applied Physics Metallurgy and Metallurgical Engineering
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Acoustics and Ultrasonics Condensed Matter Physics Electronic, Optical and Magnetic Materials