Influence of the light incidence angle on the precision of generalized magneto-optical ellipsometry

Autor:	Andreas Berger, Claudio Gonzalez-Fuentes, Lorenzo Fallarino, J. B. González-Díaz, Jon Ander Arregi
Rok vydání:	2015
Předmět:	Propagation of uncertainty Materials science business.industry chemistry.chemical_element Condensed Matter Physics Electronic Optical and Magnetic Materials Magneto optical Optics chemistry Approximation error Ellipsometry Crystallite Atomic physics business Cobalt Refractive index
Zdroj:	Journal of Magnetism and Magnetic Materials. 386:150-154
ISSN:	0304-8853
Popis:	We study theoretically and experimentally the influence of the light incidence angle φ0 on the precision of generalized magneto-optical ellipsometry (GME). A brief review of the GME methodology is presented together with a study of the error propagation from measurement uncertainties to the precision of the resulting complex index of refraction N and magneto-optical constant Q. The results are compared with longitudinal GME measurements on bulk polycrystalline cobalt. We observe a strong increase of the resulting relative error as φ0 decreases below 45°. We tested our theoretical estimates by performing GME measurements for polycrystalline cobalt ( N = 2.20 + 3.42 i ; Q = ( 2.25 − 0.80 i ) × 10 − 2 )) and found GME measurements to clearly exhibit improved reliability for φ 0 > 30 ° .
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9f2039d5a400738d4dd31c949b1b5060 https://doi.org/10.1016/j.jmmm.2015.03.077 Zobrazit plný text záznamu Full Text from ScienceDirect