Fluctuation conductivity at high temperatures in polycrystalline Hg, Tl-1223 - Is there ID fluctuation behavior?
2004 (English)In: Physica. C, Superconductivity, ISSN 0921-4534, Vol. 408, 679-680 p.Article in journal (Refereed) Published
Detailed resistivity measurements were made for polycrystalline Hg1-xTlxBa2Ca2Cu3O8+delta (x = 0.2) in zero field and in the temperature region from zero resistance up to 300 K. The fluctuation conductivity Deltasigma was analyzed as a function of is an element of equivalent to In(T/Tc-mf) in the range -5.5 < Inc < -0.5. 1D behavior Of fluctuation conductivity was found at high temperatures (above the 2D regime) with a crossover temperature T-1*, above which the critical exponent was found to be -1.5.
Place, publisher, year, edition, pages
2004. Vol. 408, 679-680 p.
fluctuation conductivity, Hg, Tl-1223
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-41186DOI: 10.1016/j.physc.2004.03.107ISI: 000224051700289ScopusID: 2-s2.0-4344615324OAI: oai:DiVA.org:kth-41186DiVA: diva2:443690
QC 20110926. 7th International Conference on Materials and Mechanisms of Superconductive and High Temperature Superconductors. Rio de Janeiro, BRAZIL. MAY 25-30, 2003 2011-09-262011-09-232011-10-19Bibliographically approved