Issue Europhys. Lett. Volume 62, Number 3, May 2003 Page(s) 426 - 432 Section Condensed matter: electronic structure, electrical, magnetic, and optical properties DOI 10.1209/epl/i2003-00413-7

DOI: 10.1209/epl/i2003-00413-7
Europhys. Lett., 62 (3) , pp. 426-432 (2003)

Optical conductivity of superconducting

B. Dóra¹, K. Maki² and A. Virosztek<sup>3, 4

1</sup>  The Abdus Salam ICTP - Strada Costiera 11, Trieste, I-34014, Italy
²  Department of Physics and Astronomy, University of Southern California Los Angeles, CA 90089-0484, USA
³  Department of Physics, Budapest University of Technology and Economics H-1521 Budapest, Hungary
⁴  Research Institute for Solid State Physics and Optics P.O. Box 49, H-1525 Budapest, Hungary

(Received 23 January 2003; accepted 6 March 2003)

Abstract
We compute the optical conductivity of 2D f-wave superconductors and also of the multigap model proposed recently by Zhitomirsky and Rice at T=0 in the Born limit. The presence of interband impurity scattering was found to play an important role: the contributions from the two bands mix up, and new structures are seen in the tunneling density of states and in the optical spectrum as well, corresponding to interband transitions. This will provide a sensitive test in selecting the competing models for the triplet superconductivity in  .

PACS
74.70.Pq - Ruthenates.
74.25.Gz - Superconductivity: Optical properties.
74.20.Rp - Pairing symmetries (other than s-wave).

© EDP Sciences 2003

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