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 |
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頁(從 - 到) | 180-187 |
頁數 | 8 |
期刊 | Chemical Physics Letters |
卷 | 370 |
發行號 | 1-2 |
DOIs | |
出版狀態 | 已發佈 - 2003 3月 7 |
對外發佈 | 是 |
ASJC Scopus subject areas
- 一般物理與天文學
- 物理與理論化學