| Issue |
EPL
Volume 126, Number 1, April 2019
|
|
|---|---|---|
| Article Number | 16001 | |
| Number of page(s) | 5 | |
| Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
| DOI | https://doi.org/10.1209/0295-5075/126/16001 | |
| Published online | 06 May 2019 | |
Reduction of the Casimir force in Al due to oxidation
Instituto de Física, Universidad Nacional Autónoma de México - Apdo. Postal 20-364, CDMX 01000, México
Received: 27 December 2018
Accepted: 5 April 2019
The modification of the Casimir force due to the oxidation of an aluminum layer is calculated as a function of the oxidation fraction of the surface. Aluminum has a large plasma frequency, and thus a large Casimir force is expected. As the surface oxidizes, it forms a thin oxide layer that is passivated. The effect of this layer is to decrease the force significantly, even though the oxide layer is only 5 nm thick. To understand the large effect on the force, we calculate the reflectograms in real-frequency space and show the degradation of the evanescent modes due to the growth of the oxide layer.
PACS: 68.65.Ac – Multilayers / 78.20.-e – Optical properties of bulk materials and thin films
© EPLA, 2019
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.