Electronic homogeneity in The overdoped regime of The electron-doped high-Tc superconductors

M. A. Baqiya, T. Adachi, A. Takahashi, T. Prombood, M. Watanabe, K. Fukumoto, Y. Tanabe, Y. Koike

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Abstract

In order to investigate The electronic homogeneity in electron-doped high-Tc cuprates, magnetization and specific heat measurements have been performed for Pr1-xLaCexCuO4 single crystals with x 0.13-0.17. It has been found from The magnetization curve that The hysteresis is relatively small and that The so-called second magnetization peak is absent for every x. Moreover, The Sommerfeld constant in The ground state has shown HlnH dependence on magnetic field H for every x, suggesting that The superconductivity is not pure but dirty. These results are in contrast to those observed in The overdoped regime of hole-doped La2-xSrxCuO4 where an inhomogeneous superconducting state is formed in spite of The superconductivity being pure. Therefore, it has been concluded that a rather homogeneous electronic state is realized in The electron-doped cuprates, suggesting different electronic states between hole- and electron-doped cuprates.

Original languageEnglish
Article number022002
JournalJournal of Physics: Conference Series
Volume568
DOIs
Publication statusPublished - 2014 Jan 1
Event27th International Conference on Low Temperature Physics, LT 2014 - Buenos Aires, Argentina
Duration: 2014 Aug 62014 Aug 13

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Baqiya, M. A., Adachi, T., Takahashi, A., Prombood, T., Watanabe, M., Fukumoto, K., Tanabe, Y., & Koike, Y. (2014). Electronic homogeneity in The overdoped regime of The electron-doped high-Tc superconductors. Journal of Physics: Conference Series, 568, [022002]. https://doi.org/10.1088/1742-6596/568/2/022002