Abstract
Superconducting metamaterials are utilized to study the approach to the plasmonic limit simply by tuning temperature to modify the superfluid density, and thus the superfluid plasma frequency. We examine the persistence of artificial magnetism in a metamaterial made with superconductors in the plasmonic limit, and compare to the electromagnetic behavior of normal metals as a function of frequency as the plasma frequency is approached from below. Spiral-shaped Nb thin film meta-atoms of scaled dimensions are employed to explore the plasmonic behavior in these superconducting metamaterials, and the scaling condition allows extraction of the temperature dependent superfluid density, which is found to be in good agreement with expectations.
Recommended Citation
C. Kurter et al., "Plasmonic Scaling of Superconducting Metamaterials," Physical review B: Condensed matter and materials physics, vol. 88, no. 18, pp. 180510-1 - 180510-5, American Physical Society (APS), Nov 2013.
The definitive version is available at https://doi.org/10.1103/PhysRevB.88.180510
Department(s)
Physics
International Standard Serial Number (ISSN)
1098-0121
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2013 American Physical Society (APS), All rights reserved.
Publication Date
01 Nov 2013
