کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1800542 | 1524894 | 2013 | 5 صفحه PDF | دانلود رایگان |
We study the magneto-optical properties of thin epitaxially grown Co/CoO bilayer films with in-plane uniaxial anisotropy by means of Magneto-Optical Kerr Effect (MOKE) measurements. The magneto-optical response obtained from these samples exhibits a surprising and atypical behavior, in that the polarizer setting, at which signal inversion occurs, is a function of the sample orientation. This behavior even occurs for identical orientations of the magnetization with respect to the plane-of-incidence. Using Generalized Magneto-Optical Ellipsometry, we show that the origin of this behavior is the presence of optical anisotropy, which we attribute to the strained epitaxial CoO overlayer in our samples.
► We study the MO response of epitaxial Co/CoO bilayers with high crystalline order.
► The MO response studied by means of GME shows an unusual behavior.
► Optical anisotropy arises as the origin of such a large change in the MO response.
► This anomaly might occur in many experiments, leading to wrong magnetic properties.
► GME ellipsometry can distinguish in between these two different effects.
Journal: Journal of Magnetism and Magnetic Materials - Volume 325, January 2013, Pages 147–151