[HTML][HTML] High-resolution electron microscopy and electron diffraction of perovskite-type superconducting copper oxides

T Oku - Nanotechnology Reviews, 2014 - degruyter.com
High-resolution electron microscopy and electron diffraction are quite useful for structural
characterization of perovskite-type superconducting copper oxides on the atomic scale …

Effect of Ge4+ and Mg2+ do** on superconductivity, fluctuation induced conductivity and interplanar coupling of TlSr2CaCu2O7− δ superconductors

AA Yusuf, AK Yahya, NA Khan, FM Salleh… - Physica C …, 2011 - Elsevier
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 …

Superconducting fluctuation behavior and infrared absorption properties of Tl1− xCuxSr1. 6Yb0. 4CaCu2O7-δ and Tl0. 5Pb0. 5Sr2− yMgyCa0. 8Yb0. 2Cu2O7− δ …

NH Ahmad, NA Khan, AK Yahya - Journal of alloys and compounds, 2010 - Elsevier
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 …

Superconducting fluctuation and infrared absorption of Cd-substituted Tl0. 9Bi0. 1Sr1. 8Yb0. 2Ca1− xCdxCu1. 99Fe0. 01O7− δ ceramics

S Ismail, AK Yahya, NA Khan - Ceramics International, 2013 - Elsevier
Tl0. 9Bi0. 1Sr1. 8Yb0. 2Ca1− xCdxCu1. 99Fe0. 01O7− δ (x= 0–0.4) ceramics were prepared
using the conventional solid-state synthesis method to investigate the effects of Cd2+ …

Excess conductivity analysis of Cr substituted TlSr2CaCu2O7–δ superconductor at Tl and Ca sites

A Al-Sharabi, R Abd-Shukor - Journal of alloys and compounds, 2014 - Elsevier
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 …

Ion beam analysis and normal-state conduction mechanisms for (Bi, Pb)-2223 and (Tl, Pb)/Sr-1212 superconducting phases substituted by ruthenium

R Awad, M Roumié, AI Abou-Aly, SA Mahmoud… - … of superconductivity and …, 2012 - Springer
Superconducting samples of type Bi 1.8 Pb 0.4 Sr 2 Ca 2.1 Cu 3− x Ru x O 10+ δ,(Bi, Pb)-
2223, with 0.0≤ x≤ 0.4 and type Tl 0.5 Pb 0.5 Sr 1.6 Ba 0.4 CaCu 2− x Ru x O 7− δ,(Tl …

Effects of Cu substitution on superconductivity and excess conductivity of Tl1–xCuxSr1·8Yb0·2CaCu2O7–δ (x=0–0·6) ceramics

N Huda, AK Yahya - Materials Research Innovations, 2009 - Taylor & Francis
TlSr1212 samples were synthesised from Tl1–x Cu x Sr1· 8Yb0· 2CaCu2O7–δ (x= 0· 0 to 0·
6) starting composition using the solid state synthesis method. Temperature dependent …

Influence of lead (II) sulphide on the formation and superconductivity of (Tl1-xPbx) Sr2CaCu2O7 (x= 0.1–0.8)

J Nur-Akasyah, MAF Nur-Diyana… - International Journal of …, 2021 - Elsevier
The influence of lead (II) sulphide (PbS) on the formation and superconducting behaviour of
(Tl 1-x Pb x) Sr 2 CaCu 2 O 7 (Tl-1212) phase for x= 0.1, 0.3, 0.4. 0.5, 0.7 and 0.8 was …

Properties and structure of (Tl0. 5Pb0. 5) Sr2 (Ca1− xNdx) Cu2Oz (Tl-1212) superconductors

G Gritzner, H Sudra, H Gabriel… - Superconductor …, 2008 - iopscience.iop.org
Bulk material of Nd-doped Tl-1212 superconductors was prepared via a two-step procedure
based on a wet chemical method to prepare precursor material followed by heat-treatment at …

EPR Studies of Tl0.5Pb0.5Sr1.6Ba0.4CaCu2−x Ru x O7−δ Superconductor

R Awad, AI Abou-Aly, SA Mahmoud… - Applied Magnetic …, 2011 - Springer
Bulk superconducting samples of type Tl 0.5 Pb 0.5 Sr 1.6 Ba 0.4 CaCu 2− x Ru x O 7− δ,(Tl,
Pb)/Sr-1212, with 0.0≤ x≤ 0.525 were prepared by the conventional one-step solid-state …