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We have unambiguously observed the c-axis Josephson Plasma Resonance (JPR) in high-Tc cuprate Tl2Ba2CaCu2O8 superconducting thin films employing terahertz time-domain spectroscopy in transmission as a function of temperature in zero magnetic field. These are the first measurements of the JPR temperature dependence of a high-Tc material in transmission. With(More)
– We derive the transmission coefficient, T (ω), for grazing incidence of crystals with spatial dispersion accounting for the excitation of multiple modes with different wave vectors k for a given frequency ω. The generalization of the Fresnel formulas contains the refraction indices of these modes as determined by the dielectric function ǫ(ω,k). Near(More)
Thin stacks consisting of a single intrinsic Josephson junction on (Bi,Pb)-Sr-Ca-Cu-O thin films are investigated under the influence of external microwave fields. The I-V-characteristic shows a single resistive branch, a clear superconducting gap edge structure and a pronounced current step in external microwave fields. With increasing irradiation power it(More)
First clinical experiences with a new developed electroaerosolgenator connecting with an ultrasonicaerosolgenerator are described. Propositions of corrections concern the material of the inonizating tube, which be produced of non fragile plastics and the position of exhalationway. By ionometer measuring we found a directly relation between chargetransport(More)
In the material SmLa1−xSrxCuO4−δ with alternating intrinsic Josephson junctions we explain theoretically the relative amplitude of the two plasma peaks in transmission by taking into account the spatial dispersion of the Josephson Plasma Resonance in c direction due to charge coupling. From this and the magnetic field dependence of the plasma peaks in the(More)
Nonequilibrium effects in layered superconductors forming a stack of intrinsic Josephson junctions are investigated. We discuss two basic nonequilibrium effects caused by charge fluctuations on the supercon-ducting layers: a) the shift of the chemical potential of the condensate and b) charge imbalance of quasi-particles, and study their influence on(More)
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