2003/07/18 by Yu. I. Latyshev, A. E. Koshelev, L. N. Bulaevskii +1
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #cond-mat.mtrl-sci #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.68.134504
published as Phys. Rev. B 68, 134504 (2003) · 11 pages, 8 figures, subm. Phys. Rev. B
arxiv created 2003/07/18 · openalex publication_date 2003/10/06 · arxiv updated 2009/12/01 · openalex created_date 2020/05/13 · openalex updated_date 2026/07/30
We show that the flux-flow transport of the Josephson vortex lattice (JVL) in layered high-temperature superconductors provides a convenient probe for both components of quasiparticle conductivity, \ensuremathσc and \ensuremathσab. We found that the JVL flux-flow resistivity, \ensuremathρff, in a wide range of magnetic fields is mainly determined by the in-plane dissipation. In the dense lattice regime (B>1 T) the \ensuremathρff(B) dependence is well fitted by the theoretical formula for that limit. That allows us to independently extract from the experimental data the values of \ensuremathσc and of the ratio \ensuremathσab/(\ensuremathσc\ensuremathγ4). The extracted temperature dependence \ensuremathσab(T) is consistent with microwave data. The shape of the current-voltage characteristics is also sensitive to the frequency dependence of \ensuremathσab, which allows us to estimate the quasiparticle relaxation time and relate it to the impurity bandwidth using data obtained for the same crystal.