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Nernst Effect in Electron-Doped Pr$_{2-x}$Ce$_{x}$CuO$_4$

Superconductivity 2016-08-31 v2

Abstract

The Nernst effect of Pr2x_{2-x}Cex_{x}CuO4_4 (x=0.13, 0.15, and 0.17) has been measured on thin film samples between 5-120 K and 0-14 T. In comparison to recent measurements on hole-doped cuprates that showed an anomalously large Nernst effect above the resistive Tc_c and Hc2_{c2} \cite{xu,wang1,wang2,capan}, we find a normal Nernst effect above Tc_c and Hc2_{c2} for all dopings. The lack of an anomalous Nernst effect in the electron-doped compounds supports the models that explain this effect in terms of amplitude and phase fluctuations in the hole-doped cuprates. In addition, the Hc2_{c2}(T) determined from the Nernst effect shows a conventional behavior for all dopings. The energy gap determined from Hc2_{c2}(0) decreases as the system goes from under-doping to over-dopingin agreement with the recent tunnelling experiments.

Keywords

Cite

@article{arxiv.cond-mat/0303469,
  title  = {Nernst Effect in Electron-Doped Pr$_{2-x}$Ce$_{x}$CuO$_4$},
  author = {Hamza Balci and C. P. Hill and M. M. Qazilbash and R. L. Greene},
  journal= {arXiv preprint arXiv:cond-mat/0303469},
  year   = {2016}
}
R2 v1 2026-07-22T10:48:00.584Z