Coherent transition induced by Sr doping on the YBa2Cu3O7-δ single crystal magnetoconductivity

Lopes, L.F.; Vieira, Vera Beatriz Guirland; Dias, F.T.; Silva, D L; Jaeckel, S.T.; Pureur, P.; Schaf, J.

doi:10.1088/1742-6596/568/2/022013

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2018

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“…Our results are similar to previous results obtained for Y123 samples in the approximation to zero resistance state, 15,38,39 and even in other superconducting cuprates. 40 However, our results differ from previous results obtained for Y358 samples.…”

Section: Critical Fluctuationssupporting

confidence: 92%

Gaussian and critical scalings in the magnetoconductivity fluctuations of Y₃Ba₅Cu₈O₁₈ superconductor

Dias

Vieira

Oliveira

et al. 2018

Int. J. Mod. Phys. B

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We have studied the superconducting transition and the magnetoconductivity fluctuations in the polycrystalline Y3Ba5Cu8O[Formula: see text] (Y358) superconductor under magnetic fields upto 1 T. A two-step superconducting transition could be observed as a consequence of the granular structure of the sample, which is strongly affected by the applied magnetic field. Gaussian and genuine critical 3D-XY-E fluctuation regimes were identified. A critical scaling regime beyond 3D-XY was identified for magnetic fields upto 0.25 T, corresponding to the averaged exponent 0.19 and suggesting the occurrence of the weak first-order character of the superconducting transition. In the approximation to the zero resistance a power law regime could be observed, corresponding to the averaged exponent 2.37, which are smaller than previously reported for the Y358 system. Our results are discussed in terms of the Y358 and YBa2Cu3O[Formula: see text](Y123) results in the literature.

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Section: Critical Fluctuationssupporting

confidence: 92%

Gaussian and critical scalings in the magnetoconductivity fluctuations of Y₃Ba₅Cu₈O₁₈ superconductor

Dias

Vieira

Oliveira

et al. 2018

Int. J. Mod. Phys. B

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Coherent transition induced by Sr doping on the YBa₂Cu₃O_7-δ single crystal magnetoconductivity

Cited by 1 publication

References 10 publications

Gaussian and critical scalings in the magnetoconductivity fluctuations of Y₃Ba₅Cu₈O₁₈ superconductor

Gaussian and critical scalings in the magnetoconductivity fluctuations of Y₃Ba₅Cu₈O₁₈ superconductor

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Coherent transition induced by Sr doping on the YBa2Cu3O7-δ single crystal magnetoconductivity

Cited by 1 publication

References 10 publications

Gaussian and critical scalings in the magnetoconductivity fluctuations of Y3Ba5Cu8O18 superconductor

Gaussian and critical scalings in the magnetoconductivity fluctuations of Y3Ba5Cu8O18 superconductor

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Coherent transition induced by Sr doping on the YBa₂Cu₃O_7-δ single crystal magnetoconductivity

Gaussian and critical scalings in the magnetoconductivity fluctuations of Y₃Ba₅Cu₈O₁₈ superconductor

Gaussian and critical scalings in the magnetoconductivity fluctuations of Y₃Ba₅Cu₈O₁₈ superconductor