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Title Optical and structural properties of cobalt-permalloy slanted columnar heterostructure thin films
Date 01.11.2017
Number 53803
Abstract Optical and structural properties of sequential Co-column–NiFe-column slanted columnar heterostructure thin films with an Al2O3 passivation coating are reported. Electron-beam evaporated glancing angle deposition is utilized to deposit the sequential multiple-material slanted columnar heterostructure thin films. Mueller matrix generalized spectroscopic ellipsometry data is analyzed with a best-match model approach employing the anisotropic Bruggeman effective medium approximation formalism to determine bulk-like and anisotropic optical and structural properties of the individual Co and NiFe slanted columnar material sub-layers. Scanning electron microscopy is applied to image the Co-NiFe sequential growth properties and to verify the results of the ellipsometric analysis. Comparisons to single-material slanted columnar thin films and optically bulk solid thin films are presented and discussed. We find that the optical and structural properties of each material sub-layer of the sequential slanted columnar heterostructure film are distinct from each other and resemble those of their respective single-material counterparts.
URL https://doi.org/10.1016/j.apsusc.2016.10.104
Publisher Applied Surface Science
Identifier 0
Citation Applied Surface Science 421 (2017) 783-787
DOI https://doi.org/10.1016/j.apsusc.2016.10.104
Authors Sekora, D. ; Briley, C. ; Schubert, M. ; Schubert, E.
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