Substitution of Ge 4+ in place of Cu in Tl 0.85 Cr 0.15 Sr 2 CaCu 2− x Ge x O 7− δ (x= 0–0.6)
showed initial increase in zero critical temperature value, T c zero from 98 K (x= 0) to 100 K …

Structural examinations and resistivity measurements were made on Bi 1.75 Pb 0.35 Sr 2 Ca
2 Cu 3 O 10 samples sintered at different temperatures. The excess conductivity region was …

(2223) phase is synthesized by solid state method. The X-ray diffraction technique, scanning
electron microscope, electrical and thermoelectric power measurements were used to …

Abstract Two phases (2223 and 2212) are identified in Bi 1.8 Pb 0.3 Sr 2 Ca 2 (Cu 1-x Ni x)
3.3 O y superconductor system, sintered at 847° C for 322 h, in partial nitrogen atmosphere …

Finite probability of creation of Cooper pairs in the normal state near the superconducting
transition and their interaction with the remnant electrons cause superconducting fluctuation …

We present magnetic penetration depth and electrical transport data in single crystals of
quasi-one-dimensional (q1D) Tl 2 Mo 6 Se 6, which reveal a 1 D→ 3 D superconducting …

Abstract Structure examination, resistivity, and thermopower measurements were made on
samples of Bi 1.75 Pb 0.35 Sr 2 Ca 2 Cu 3 O y sintered for different time periods …

We study the effect of addition of Ag on normal, paracoherent and superconducting coherent
state of YBa 2 Cu 3 O 7-δ (YBCO). We find that both room temperature resistivity and …

In this paper, the effects of Cu substitution at Tl site in Tl1− xCuxSr1. 6Yb0. 4CaCu2O7− δ
(x= 0–0.5) ceramics and Mg substitution at Sr site in Tl0. 5Pb0. 5Sr2− yMgyCa0. 8Yb0 …

Samples with nominal starting compositions (Tl 1− x Cr x) Sr 2 CaCu 2 O 7− δ and TlSr 2
(Ca 1− x Cr x) Cu 2 O 7− δ (x= 0.05–0.30) had been prepared by the solid state reaction …