We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Superconducting Fluctuations in Polycrystalline YBaCuO.
- Authors
Akduran, Nurcan
- Abstract
The YBaCuO superconductors are synthesised using the solid state reaction method under different annealing conditions. Structure characterisation using X-ray diffraction shows that the lattice parameters are different from those of the standard YBCO system. The resistivity measurements are performed using the four-probe method in the temperature range from 77 to 300 K. The electrical resistivity indicates the transition temperature T (O)=100.2 K and T (air)=92.3 K. Thermal fluctuations were experimentally studied. The correlations of the critical exponents with the dimensionality of the fluctuation system for each Gaussian regime were performed using the Aslamazov-Larkin theory. Near T, a critical regime with a critical exponent of λ=0.35 is effectively described by the E-model.
- Subjects
POLYCRYSTALS; SUPERCONDUCTIVITY; FLUCTUATIONS (Physics); YTTRIUM compounds synthesis; X-ray diffraction; LATTICE theory; ELECTRICAL resistivity
- Publication
Journal of Low Temperature Physics, 2012, Vol 168, Issue 5/6, p323
- ISSN
0022-2291
- Publication type
Article
- DOI
10.1007/s10909-012-0629-0