Anti-symmetric plasma mode in superconducting films

We consider the propagation of plasma modes in superconducting films bound by a high–dielectric-constant medium and predict a mode that corresponds to the anti-symmetric coupling of the two surface plasmons. We show that anisotropy plays a determinant role in lowering this mode's frequency rang...

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Bibliographic Details
Published in:Europhysics letters 1996-08, Vol.35 (6), p.445-450
Main Authors: Doria, M. M, Parage, F, Buisson, O
Format: Article
Language:English
Subjects:
74.20.De
74.25.Gz
74.76.-w
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Summary:We consider the propagation of plasma modes in superconducting films bound by a high–dielectric-constant medium and predict a mode that corresponds to the anti-symmetric coupling of the two surface plasmons. We show that anisotropy plays a determinant role in lowering this mode's frequency range, bringing it to the realm of possible experimental observation for the high-Tc superconductors. Theoretical predictions for the maximal and minimum film thickness, where this mode can be found below the plasma frequency along the c-axis, are also made here.
ISSN:0295-5075
1286-4854
DOI:10.1209/epl/i1996-00100-3