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Proceedings Paper

Unconventional electrodynamics of high-Tc and organic superconductors
Author(s): Thomas Timusk; N. Cao; D. N. Basov; Christopher C. Homes
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Paper Abstract

The combination of lowered dimensionality and electron-electron correlations are responsible for the unusual temperature and frequency dependence of the electrical conductivity of the new superconductors. We first review the electrodynamics of two systems, U2Ru2Si2 and Sr2RuO4 where conventional Fermi liquid ideas seem to work. Here transport is by free carriers with strongly renormalized masses. On the other hand the electrodynamics of the high Tc cuprates and the organic charge transfer salts is unconventional. The high Tcs show a Drude peak with an anomalous temperature and frequency dependent scattering rate for the in-plane conductivity, while normal to the planes they are almost insulating. In the organics, the transport currents are carried by a narrow collective mode coupled to phonons.

Paper Details

Date Published: 10 June 1996
PDF: 11 pages
Proc. SPIE 2696, Spectroscopic Studies of Superconductors, (10 June 1996); doi: 10.1117/12.241745
Show Author Affiliations
Thomas Timusk, McMaster Univ. (Canada)
N. Cao, McMaster Univ. (Canada)
D. N. Basov, McMaster Univ. (Canada)
Christopher C. Homes, Simon Fraser Univ. (Canada)

Published in SPIE Proceedings Vol. 2696:
Spectroscopic Studies of Superconductors
Ivan Bozovic; Dirk van der Marel, Editor(s)

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