Fluctuation conductivity analysis for Bi2Sr2(Ca1−Y )Cu2O8+ single crystals in both overdoped and underdoped regimes

Aoki, Tatsunori; Oikawa, Yoichi; Kim, Changman; Tamura, Takashi; Ozaki, Hajime; Môri, N.

doi:10.1016/j.physc.2007.05.018

Cited by 8 publications

(2 citation statements)

References 23 publications

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“…On the other hand, the AMD formulae are required to better describe data on YBCO films. Similar evidences seem to be observed in our previous reports on the s-wave analyses [8,9]. From values of the fluctuation parameters obtained in the present analyses, the anisotropy in films can be characterized.…”

Section: Discussionsupporting

confidence: 91%

d-wave Paraconductivity Characterization of Tc Variations in High-Tc Superconducting Films

2014

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The fluctuation conductivity above (the paraconductiviy) in films of Bi 2 Sr 2 CaCu 2 O 8+d (Bi2212) and YBa 2 Cu 3 O 7-(YBCO) with variations is analyzed in terms of theoretical formulae based on the d-wave superconductivity. It is found that experimental data are describable by the Aslamazov-Larkin term provided that a total-energy cutoff effect is taken into account though there are deviations in the fits for the YBCO case, which can be improved by considering overall contributions to the paraconductivity. The dependence of the fluctuation amplitude upon is reconciled with the d-wave theory.

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Section: Discussionsupporting

confidence: 91%

d-wave Paraconductivity Characterization of Tc Variations in High-Tc Superconducting Films

2014

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“…A decrease of the c-axis upon rare earth substitution into Ca layers has also been reported for Bi 2 Sr 2 (Ca 1−x Y x )Cu 2 O 8+δ . Information on the behavior of the a-axis in this superconducting phase is absent [23].…”

Section: Resultsmentioning

confidence: 99%

Properties and structure of (Tl_0.5Pb_0.5)Sr₂(Ca_1−xNd_x)Cu₂O_z(Tl-1212) superconductors

Gritzner¹,

Sudra²,

Gabriel³

et al. 2008

Supercond. Sci. Technol.

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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 895 °C for 10 h. The samples with Nd stoichiometry of x = 0.05, 0.1, 0.15, 0.20 0.25 and 0.30 were characterized by XRD, electron microscopy and by resistance measurements. Oxygen stoichiometry of the specimens was analyzed. Lattice parameters were derived from x-ray diffraction and neutron diffraction measurements. The increase of the a-axis and the decrease of the c-axis as a function of the Nd content are discussed.

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Fluctuation-conductivity Characterization of Superconducting Bi2Sr2CaCu2O8+d Thin Films Prepared by the Metal-organic Decomposition Method

et al. 2013

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Fluctuation conductivity analysis for Bi2Sr2(Ca1−Y )Cu2O8+ single crystals in both overdoped and underdoped regimes

Cited by 8 publications

References 23 publications

d-wave Paraconductivity Characterization of Tc Variations in High-Tc Superconducting Films

d-wave Paraconductivity Characterization of Tc Variations in High-Tc Superconducting Films

Properties and structure of (Tl_0.5Pb_0.5)Sr₂(Ca_1−xNd_x)Cu₂O_z(Tl-1212) superconductors

Fluctuation-conductivity Characterization of Superconducting Bi2Sr2CaCu2O8+d Thin Films Prepared by the Metal-organic Decomposition Method

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Fluctuation conductivity analysis for Bi2Sr2(Ca1−Y )Cu2O8+ single crystals in both overdoped and underdoped regimes

Cited by 8 publications

References 23 publications

d-wave Paraconductivity Characterization of Tc Variations in High-Tc Superconducting Films

d-wave Paraconductivity Characterization of Tc Variations in High-Tc Superconducting Films

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

Fluctuation-conductivity Characterization of Superconducting Bi2Sr2CaCu2O8+d Thin Films Prepared by the Metal-organic Decomposition Method

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Properties and structure of (Tl_0.5Pb_0.5)Sr₂(Ca_1−xNd_x)Cu₂O_z(Tl-1212) superconductors