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Title: The normal state properties of nano-sized CoFe{sub 2}O{sub 4} added Bi-based superconductors in bipolaron model

The effect of nano-sized CoFe{sub 2}O{sub 4} particles (10 nm in diameter) addition on the structure and the normal state transport properties of polycrystalline Bi-based superconductors were systematically studied. The additional amount, x wt.%, of CoFe{sub 2}O{sub 4} in this case varied from 0.0 to 1 wt.% of the total mass of the sample. Phase analysis by X-ray diffraction (XRD) and Electrical resistance as a function of temperature, ρ(T) were carried out. Nano-sized particles addition modifies the electrical behavior of the normal state with increasing the CoFe{sub 2}O{sub 4} concentration. The bipolaron model can explain properly the normal state resistivity of the samples.
Authors:
; ; ; ; ;  [1]
  1. L3M, Department of Physics, Faculty of Sciences of Bizerte, University of Carthage, 7021 Zarzouna (Tunisia)
Publication Date:
OSTI Identifier:
22261722
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1569; Journal Issue: 1; Conference: 3. international advances in applied physics and materials science congress, Antalya (Turkey), 24-28 Apr 2013; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; COBALT OXIDES; ELECTRIC CONDUCTIVITY; NANOSTRUCTURES; PARTICLES; PHASE STUDIES; POLYCRYSTALS; SUPERCONDUCTORS; TEMPERATURE DEPENDENCE; X-RAY DIFFRACTION