Surface plasma oscillations on disordered binary alloy surfaces

Villanucci, D. P.; Teng, Ye-Yung; Karakashian, A. S.

doi:10.1016/0375-9601(74)90343-0

Cited by 2 publications

(1 citation statement)

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“…Finally, at the Al-rich end of the phase diagram, there is an Al-rich fcc -phase, capable of dissolving of the order of 25 at.% Ag at elevated temperatures [23]. The optical properties of this material have also been studied [24,25]. In the present paper, however, we limit our investigation to Ag-rich -phase only.…”

Section: Introductionmentioning

confidence: 99%

Optical properties and oxidation ofα-phase Ag–Al thin films

et al. 2017

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We investigate a series of Ag-Al thin films containing up to 12 at% Al with the purpose of discovering whether these alloys would be a better choice for nanophotonic applications than pure Ag. Variable angle spectroscopic ellipsometry, AFM, x-ray diffraction and density functional theory are applied to explore and characterize the materials. Electromagnetic simulations of optical properties are used to place the results into a theoretical framework. We find that the increase in electron-to-atom ratio associated with the Al additions changes the optical properties: additions of the order of 1-2 at% Al are beneficial as they are associated with favorable changes in the dielectric function, but for greater additions of Al there is a flattening of the absorption edge and an increase in optical loss. In addition, contents of more than about 2 at% Al are associated with the onset of time-dependent intergranular oxidation, which causes a pronounced dip in the reflectance spectrum at about 2.3-2.4 eV (∼500-540 nm).

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Section: Introductionmentioning

confidence: 99%