Anderson-like localization in ultrathin nanocomposite alloy films on polymeric substrates
Date
2012
Authors
Zuber, Kamil
Merkens, Kerstin
Frölich, Katja
Murphy, Peter
Wong-Leung, Jennifer
Evans, Drew R
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Volume Title
Publisher
Pergamon-Elsevier Ltd
Abstract
The resistivity-structure relationship is experimentally investigated for ultrathin chrome cobalt (CrCox) alloy films sequentially co-sputtered on pre-coated polymeric substrates. For a narrow range of concentrations, we determine the crystal structure to be predominantly body-centred cubic and in one case having an additional Ω-hexagonal close-packed phase. The alloy film with the Ω-hexagonal close-packed phase shows an anomalous resistivity-temperature relationship. This is consistent with the associated crystal structure change and is attributed to an Anderson-like localization of carriers.
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Keywords
Keywords: Alloy film; Body-centred cubic; Hexagonal close-packed; Nanocomposite alloys; Physical vapour deposition; Polymeric substrate; Thin-film coatings; Ultra-thin; Cobalt; Electric properties; Metallic films; Phase transitions; Polymers Electrical properties; Phase transition; Physical vapour deposition (PVD); Thin film coatings
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Source
Scripta Materialia
Type
Journal article
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2037-12-31
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