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Anomalous Temperature Dependence of the Upper Critical Magnetic Field in Electron-Doped High-Temperature Superconductor

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Abstract:

We present resistivity measurements of the upper critical field as a function of temperature for Nd2-xCexCuO4+δ/SrTiO3 single crystal films near antiferromagnetic-superconducting phase boundary (x = 0.14) in magnetic fields up to 90kOe at temperatures down to 0.7K. The data are well described by a two-band/two-gap model for a superconductor in the dirty limit.

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Periodical:

Solid State Phenomena (Volumes 233-234)

Pages:

729-732

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.233-234.729

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Online since:

July 2015

Authors:

Tatiana B. Charikova*, Nina G. Shelushinina, German I. Harus, Vladimir N. Neverov, Denis S. Petukhov, Olga E. Petukhova, Andrei A. Ivanov

Keywords:

Antiferromagnetic-Superconducting Phase Boundary, Electron-Doped Cuprate Superconductor, Upper Critical Magnetic Field

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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