Pr-induced superconductivity suppression in Y x Pr 1-x Ba 2 Cu 4 O 8 probed by soft-X-ray absorption spectroscopy: A comparative studies of Y x Pr 1-x Ba 2 Cu 4 O 8 and Y x Pr 1-x Ba 2 Cu 3 O 7

J. M. Chen*, S. J. Liu, J. M. Lee, I. P. Hong, J. Y. Lin, Y. S. Gou, H. D. Yang

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

4 引文 斯高帕斯(Scopus)

摘要

The variation of hole states with Pr doping for Y x Pr 1-x Ba 2 Cu 3 O 7 and Y x Pr 1-x Ba 2 Cu 4 O 8 has been investigated by O K-edge X-ray absorption spectroscopy. Upon Pr substitution, T c suppression rate in Y x Pr 1-x Ba 2 Cu 4 O 8 is slower than that in Y x Pr 1-x Ba 2 Cu 3 O 7 . For both systems, hole carriers in the CuO 2 planes and CuO chains decrease monotonically with increasing Pr doping level. The depletion rate of hole carriers in the CuO 2 planes with Pr doping in Y x Pr 1-x Ba 2 Cu 4 O 8 is considerably slower than that in Y x Pr 1-x Ba 2 Cu 3 O 7 . The oxygen content affects the depletion rate of hole carriers in cuprates with Pr doping.

原文英語
頁(從 - 到)180-187
頁數8
期刊Chemical Physics Letters
370
發行號1-2
DOIs
出版狀態已發佈 - 2003 3月 7
對外發佈

ASJC Scopus subject areas

  • 一般物理與天文學
  • 物理與理論化學

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