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Conductivity in Pseudogapped Superconductors: The Role of the Fermi Arcs by Wulin, Dan; Fregoso, Benjamin M.; Guo, Hao; Chien, Chih-Chun; Levin, Kathryn is a scholarly article available to read on EtoBox.

What is Conductivity in Pseudogapped Superconductors: The Role of the Fermi Arcs about?

We calculate the dc conductivity $\sigma$ in a pseudogapped high $T_c$ superconductor within a theory which is consistent with gauge invariance. Our results contain additional terms beyond those identified previously. Although it has been thought that lifetime effects dominate the $T$ dependence of transport, here we show (consistent with growing experimental support) that the temperature dependence of the effective carrier number $(n/m(T))_{\rm{eff}}$ plays a critical role and thereby leads to the contrasting behavior between over and under-doped regimes. The role of Fermi arcs is secondary.

Author

Wulin, Dan; Fregoso, Benjamin M.; Guo, Hao; Chien, Chih-Chun; Levin, Kathryn

Published

2010

Language

EN