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

Yusuf, A. Ali; Yahya, A. K.; Khan, Nawazish A.; Salleh, Faiz; Marsom, Elya Sufliza; Sahari, Noorul Huda

doi:10.1016/j.physc.2011.03.007

Cited by 37 publications

(25 citation statements)

References 46 publications

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“…Pada suhu peralihan, T 2D-3D , panjang koheren paksi-c, ξ c (0) bagi sampel polihablur boleh diperoleh dengan menggunakan model Lawrence-Doniach (Yusuf et al 2011),…”

Section: Pengenalanunclassified

“…Menggunakan model Lawrence-Doniach, interaksi antara lapisan superkonduktor J diberikan oleh persamaan (Yusuf et al 2011…”

Section: Pengenalanunclassified

“…Bagi sistem superkonduktor berlapis, anisotropi γ ditulis sebagai γ = ξ ab (0)/ξ c (0) dengan ξ ab (0) ialah panjang koheren-ab iaitu antara 10 dan 20 Å untuk superkonduktor berasaskan kuprum oksida (Yusuf et al 2011).…”

Section: Pengenalanunclassified

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Analisis Kekonduksian Lebihan Superkonduktor YBa2Cu3O7-δ Ditambah Nanozarah PbO

Al-Sharabi¹,

Tajuddin²,

Saffiey³

et al. 2016

JSM

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“…Pada suhu peralihan, T 2D-3D , panjang koheren paksi-c, ξ c (0) bagi sampel polihablur boleh diperoleh dengan menggunakan model Lawrence-Doniach (Yusuf et al 2011),…”

Section: Pengenalanunclassified

“…Menggunakan model Lawrence-Doniach, interaksi antara lapisan superkonduktor J diberikan oleh persamaan (Yusuf et al 2011…”

Section: Pengenalanunclassified

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Analisis Kekonduksian Lebihan Superkonduktor YBa2Cu3O7-δ Ditambah Nanozarah PbO

Al-Sharabi¹,

Tajuddin²,

Saffiey³

et al. 2016

JSM

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“…[1][2][3][4][5][6][7][8] The optimum hole concentration in the conducting CuO 2 planes is the source of the highest critical temperature in the high T c Tl 2 Ba 2 Ca(Cu 1-x R x ) 2 O δ+6 (Tl-2212) superconductor.…”

Section: Introductionmentioning

confidence: 99%

Influence of KMnO4 Substitution on the Structural and Transport Properties of Tl2Ba2Ca(Cu1-xRx)2Oδ+6 System

Hassan¹,

Alnakhlani²,

Abdulhafiz³

et al. 2016

JPS

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“…This variation in T c mainly depends on the processing conditions, resulting oxygen content and other deviations from stoichiometry. Many methods were carried out to prepare (Tl,Pb)/Sr-1212 superconductor phase using the precursor method with solid-state reaction [4][5][6], wet chemical gel [7], two-step solid-state reaction [8] and multi-step solid solution reaction techniques [9]. In our work, we synthesized (Tl,Pb)/Sr-1212 phase by the conventional one-step solid-state reaction technique via a short time, using SrO 2 instead of SrCO 3 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Magnetoresistance Studies of Tl0.5Pb0.5Sr1.6Ba0.4CaCu2−x Ru x O7−δ Superconductor

Abou‐Aly

Awad

Mahmoud

et al. 2011

J Supercond Nov Magn

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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 synthesized by the conventional one-step solid-state reaction technique via a short time, using SrO 2 instead of SrCO 3 . X-ray powder diffraction XRD, scanning electron microscope SEM and the electrical resistivity measurements at different applied dc magnetic fields (0.0-4.4 kG) were performed in order to investigate the effect of Ru 4+ ions substitution on (Tl,Pb)/Sr-1212 phase. Enhancement of the phase formation, the superconducting transition temperature T c and the hole carriers concentration P was observed up to x = 0.075, and they decreased for further increase in x. The magnetoresistance data of these samples were analyzed within the thermally activated flux creep TAFC model and the Ambegaokar and Halperin AH theory. The derived flux pinning energy U , the critical current density J c (0) and the upper critical magnetic field B c2 (0) enhanced up to x = 0.075, beyond which they decreased for further increase in Ru-content. The coherence length at 0 K ζ(0) decreased up to x = 0.075 and increased with x > 0.075. In addition, we reported a comparison between the effect of Ru substitution on the physical properties for Gd-123, (Bi,Pb)-2223 and (Tl,Pb)/Sr-1212 phases.

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

Cited by 37 publications

References 46 publications

Analisis Kekonduksian Lebihan Superkonduktor YBa2Cu3O7-δ Ditambah Nanozarah PbO

Analisis Kekonduksian Lebihan Superkonduktor YBa2Cu3O7-δ Ditambah Nanozarah PbO

Influence of KMnO4 Substitution on the Structural and Transport Properties of Tl2Ba2Ca(Cu1-xRx)2Oδ+6 System

Synthesis, Characterization and Magnetoresistance Studies of Tl0.5Pb0.5Sr1.6Ba0.4CaCu2−x Ru x O7−δ Superconductor

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