Upper critical field in electron-doped cuprate superconductor Nd$_{2-x}$Ce$_x$CuO$_{4+\delta}$: two-gap model

T. B. Charikova; N. G. Shelushinina; G. I. Harus; D. S. Petukhov; V. N. Neverov; A. A. Ivanov

doi:10.1016/j.physc.2013.02.010

Upper critical field in electron-doped cuprate superconductor Nd$_{2-x}$Ce$_x$CuO$_{4+\delta}$: two-gap model

Superconductivity 2015-06-12 v1

Authors: T. B. Charikova , N. G. Shelushinina , G. I. Harus , D. S. Petukhov , V. N. Neverov , A. A. Ivanov

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Abstract

We present resistivity measurements of the upper critical field (H $_{c2}$ ) phase diagram as a function of temperature (T) for Nd $_{1.85}$ Ce $_{0.15}$ CuO $_{4+\delta}$ /SrTiO $_3$ single crystal films with different degree of disorder ( $\delta$ ) in magnetic fields up to 90 kOe at temperatures down to 0.4 K. The data are well described by a two-band/two-gap model for a superconductor in the dirty limit.

Keywords

upper critical field electron-doped cuprates Nd$_{2-x}$Ce$_x$CuO$_{4+\delta}$ two-gap model dirty limit resistivity measurements phase diagram

Cite

@article{arxiv.1212.6118,
  title  = {Upper critical field in electron-doped cuprate superconductor Nd$_{2-x}$Ce$_x$CuO$_{4+\delta}$: two-gap model},
  author = {T. B. Charikova and N. G. Shelushinina and G. I. Harus and D. S. Petukhov and V. N. Neverov and A. A. Ivanov},
  journal= {arXiv preprint arXiv:1212.6118},
  year   = {2015}
}

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17 pages, 5 figures, 2 tables

Upper critical field in electron-doped cuprate superconductor Nd$_{2-x}$Ce$_x$CuO$_{4+\delta}$: two-gap model

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