Synthesis and characterization of Er-substituted Bi-2223 H-Tc glass–ceramic superconductors

Co-addition into MgB2: The structural and electronic properties of (MgB2)2−xCox

“…Two kinds of phonon may contribute to thermal transport; acoustic phonons and optical phonons. In the case of contribution of acoustic phonons, a broad maximum appears in thermoelectric power curves, as seen in the BSCCO HT c cuprates [42]. This is related to phonon-mean free path.…”

“…This is often attributed to charge carrier and phonon scattering by variously distributed impurities or extended defects [39,40]. However, in the HT c materials, the sharp rising observed just below T c is explained by considering either an increase in the phonon-mean free path due to carrier condensation or an increase in the quasiparticle relaxation time in the superconducting state or both [41,42].…”

Effect of Mo substitution on the structural and transport properties of Bi2Sr2Ca2Cu3−xMoxO10+y system

“…But the effect of V was found not as strong as in the Ni and Fe cases [12]. For Er substitution for Cu, a decrease on T c was obtained due to increase of the hole concentration [13].…”

Thermophysical Properties of Bi-based High-Tc Superconductors

“…The BISCCO samples substituted with Fe, Cr, Co, Gd, Er, Nd, Sm, Ag, V, Ga, Zn, Cd, etc. have been widely prepared using conventional solid state reaction and glass-ceramics techniques (Aksan & Yakyncy, 2004;Chatterjee, et.al. 1998;Cloots, et.al., 1994;Coskun, et.al.…”