Effect of quasiparticles on interlayer transport in highly anisotropic layered superconductors

S. N. Artemenko, L. N. Bulaevskii, M. P. Maley, V. M. Vinokur

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We have performed a microscopic calculation of the dielectric response function in highly anisotropic layered superconductors and used the developed approach to obtain the frequency-dependent London penetration length and conductivity in the case of d-wave pairing for currents perpendicular to the layers. We consider a BCS model with coherent interlayer tunneling of electrons and take into account contributions from both superconducting electrons and quasiparticles to the dielectric response. We show that quasiparticles change the low-temperature behavior of the penetration length in the intermediate frequency range where the frequency is smaller than the superconducting order parameter but larger than the inverse quasiparticle scattering time. The obtained results are used to describe the low-temperature behavior of the Josephson plasma resonance, in particular the temperature dependence of the resonance frequency and the resonance linewidth in zero external magnetic field. We compare our results with the available experimental data for Tl2Ba2CuO6 and Bi2Sr2CaCu2O8+δ (Bi-2212) and show that results of a BCS model with coherent interlayer tunneling for the dc c-axis resistivity in the superconducting state are inconsistent with experimental data for underdoped and optimally doped Bi-2212 crystals.

Original languageEnglish
Pages (from-to)11587-11595
Number of pages9
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume59
Issue number17
Publication statusPublished - 1999

ASJC Scopus subject areas

  • Condensed Matter Physics

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