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AbstractAbstract
[en] Full text: Measurements of the Hall effect and the resistivity on precisely-patterned YBCO thin film in moderate magnetic fields B from 0.5 to 6 T oriented parallel to the crystallographic c axis reveal a sign reversal of the Hall coefficient for B < 3 T. The data are confronted with the full quantitative expressions given by the renormalized fluctuation model for the excess Hall conductivity. The model offers a satisfactory quantitative approach to the experimental results, for moderate fields and temperatures near the critical region, provided the inhomogeneity of the critical temperature distribution is also taken into account. For lower fields and temperatures, the adequacy of the model is altered by vortex pinning. (author)
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Lippitsch, M. (ed.) (Institut fuer Experimentalphysik, Universitaet Graz, Universitaetsplatz 5, A-8010 Graz (Austria)), E-mail: office@oepg.at; Oesterreichische Physikalische Gesellschaft (Austria). Funding organisation: Bundesministerium fuer Bildung, Wissenschaft und Kultur (Austria); Land Steiermark (Austria); Stadt Leoben (Austria); Andritz AG (Austria); Bank Austria AG (Austria); Brauerei Goess (Austria); Bruker AXS Gmbh (Germany); Gatan Gmbh (Germany); Buero Herke (Austria); Olympus Optical GmbH (Germany); Pfeiffer Vacuum GmbH (Austria); Raiffeisenbank Trofaiach-Leoben (Austria); Unternehmensgruppe Starzinger (Austria); Tourismusverband Leoben (Austria); 132 p; 2002; p. 76-77; 52. Annual symposium of the Austrian Physical Society; 52. Jahrestagung der Oesterreichischen Physikalischen Gesellschaft; Leoben (Austria); 23-26 Sep 2002; Available in abstract form only, full text entered in this record
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