Title :
The influence of DC transport current on the superconducting and normal properties of ceramic high-temperature superconducting Bi-based oxides after their heat treatment
Author :
Nikoghosyan, S.K. ; Harutunyan, V.V. ; Baghdasaryan, V.S. ; Mughnetsyan, E.A. ; Zargaryan, E.G. ; Sarkisyan, A.G.
Author_Institution :
A.I. Alikhanyan National Research Laboratory (Yerevan Physics Institute) Foundation, Armenia
Abstract :
The effect of the DC transport current (I) on the superconducting and normal properties of ceramic high-temperature superconducting bismuth-based oxides of different compositions was studied by temperature dependent resistivity (r) measurements at fixed points around liquid nitrogen temperature under the presence of Earth´s geomagnetic field. It has been shown that the observed results are significantly dependent on the sample preparation and post-processing conditions as well as on the measurement temperature.
Keywords :
Conductivity; Current measurement; Granular superconductors; High temperature superconductors; Superconducting transition temperature; Temperature dependence; Temperature measurement; Josephson weak links; electrical resistivity; high temperature superconductor (HTS); superconducting transition temperature; transport current;
Conference_Titel :
Oxide Materials for Electronic Engineering (OMEE), 2012 IEEE International Conference on
Conference_Location :
Lviv, Ukraine
Print_ISBN :
978-1-4673-4491-3
DOI :
10.1109/OMEE.2012.6464838
