期刊
PHYSICAL REVIEW LETTERS
卷 99, 期 14, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.99.147004
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We report a tunneling study between Pr2-xCexCuO4-delta and lead as a function of doping, temperature, and magnetic field. The temperature dependence of the gap follows the BCS prediction. Our data fit a nonmonotonic d-wave order parameter for the whole doping range studied. From our data we are able to conclude that the electron-doped cuprate Pr2-xCexCuO4-delta is a weak-coupling BCS dirty superconductor.
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