Electrical transport properties of dense bulk YBa2Cu4O8 produced by hot isostatic pressing
1990 (English)In: Physica. C, Superconductivity, ISSN 0921-4534, Vol. 170, no 5-6, 521-531 p.Article in journal (Refereed) Published
Highly dense sintered YBa2Cu4O8 has been produced by hot isostatic pressing (HIP). The electrical resistivity varrho of this material has been measured as a function of temperature T and pressure varrho in the range 40–650 K and 0–0.7 GPa. Both the temperature dependence and the pressure dependence of varrho are found to be well described by a model based on the standard Bloch-Grüneisen theory. It is pointed out that varrho is liner in T only under isobaric conditions, while varrho is strongly nonlinear in all high-Tc superconductors under isochoric (constant volume) conditions. The critical current density of the material is 900 A/cm2 at 4 K, while the resistivity is 630 μΩ cm at 294 K.
Place, publisher, year, edition, pages
1990. Vol. 170, no 5-6, 521-531 p.
YBa2Cu4O8, Y-124, superconductivity, high transition temperature superconductors, HTS, Hi-Tc, high pressure, resistivity, hot isostatic pressing, HIP, critical current density
Condensed Matter Physics Condensed Matter Physics
Research subject Physics
IdentifiersURN: urn:nbn:se:umu:diva-26659DOI: 10.1016/0921-4534(90)90025-AOAI: oai:DiVA.org:umu-26659DiVA: diva2:273183