Title :
Order-disorder effects in the magneto-optical properties of evaporated Fe-Co alloy films
Author :
Prinz, G.A. ; Maisch, W.G. ; Lubitz, P. ; Forester, D.W. ; Krebs, J.J.
Author_Institution :
Naval Research Laboratory, Washington, DC
fDate :
11/1/1981 12:00:00 AM
Abstract :
The magneto-optical properties of evaporated films of Fe-Co alloys have been studied as a function of composition using ellipsometric techniques to obtain the components of the index of refraction N = n-ik and the magneto-optical coefficient Q = Q1-iQ2at the He-Ne laser wavelengths of λ = 1.15μm and 0.63μm. The results indicate a very sharply defined compositional range between Fe.5Co.5and Fe.6Co.4in which the order-disorder transition affects the optical properties by increasing both n and k, as well as increasing |Q| to values larger than any previously reported except for the compound MnBi.
Keywords :
Magnetic films; Magnetooptic materials/devices; Iron; Kerr effect; Magnetic field measurement; Magnetic properties; Magnetooptic effects; Nonlinear optics; Optical films; Optical refraction; Substrates; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1981.1061578
