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Nernst effect in Tl-Ba-Ca-Cu-O superconducting films due to infrared laser heating

URN to cite this document:
urn:nbn:de:bvb:355-epub-173377
Lengfellner, Hans ; Schnellbögl, Andreas ; Betz, Josef ; Renk, Karl Friedrich ; Prettl, Wilhelm
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Date of publication of this fulltext: 18 Oct 2010 11:48


Abstract

A Nernst effect has been observed in a high temperature superconductor for the first time. Irradiating superconducting Tl–Ba–Ca–Cu–O thin films by short pulses of a TEA-CO2 laser, a photovoltaic signal is detected perpendicular to a magnetic field applied parallel to the film surface. The signal is attributed to magnetic flux line depinning and flux line transport driven by the laser induced ...

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