Doping evolution of Zhang-Rice singlet spectral weight: A comprehensive examination by x-ray absorption spectroscopy

Y. J. Chen; M. G. Jiang; Chih-Wei Luo; Jiunn-Yuan Lin; Kaung-Hsiung Wu; J. M. Lee; J. M. Chen; Y. K. Kuo; Jenh-Yih Juang; Chung Yu Mou

doi:10.1103/PhysRevB.88.134525

Doping evolution of Zhang-Rice singlet spectral weight: A comprehensive examination by x-ray absorption spectroscopy

Y. J. Chen, M. G. Jiang, Chih-Wei Luo, Jiunn-Yuan Lin, Kaung-Hsiung Wu, J. M. Lee, J. M. Chen, Y. K. Kuo, Jenh-Yih Juang, Chung Yu Mou

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21 引文斯高帕斯（Scopus）

摘要

The total spectral weight S of the emergent low-energy quasiparticles in high-temperature superconductors (HTSCs) is explored by x-ray absorption spectroscopy. In order to examine the applicability of the Hubbard model, regimes that cover from zero doping to overdoping are investigated. In contrast to results of mean-field theory, we found that S deviates from linear dependence on the doping level p. The slope of S versus p changes continuously throughout the whole doping range with no sign of saturation up to p=0.23. Therefore, the picture of the Zhang-Rice singlet remains intact within the most prominent doping regimes of HTSCs.

原文	English
文章編號	134525
頁數	5
期刊	Physical Review B - Condensed Matter and Materials Physics
卷	88
發行號	13
DOIs	https://doi.org/10.1103/PhysRevB.88.134525
出版狀態	Published - 31 10月 2013

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Chen, Y. J., Jiang, M. G., Luo, C.-W., Lin, J.-Y., Wu, K.-H., Lee, J. M., Chen, J. M., Kuo, Y. K., Juang, J.-Y., & Mou, C. Y. (2013). Doping evolution of Zhang-Rice singlet spectral weight: A comprehensive examination by x-ray absorption spectroscopy. Physical Review B - Condensed Matter and Materials Physics, 88(13), 文章 134525. https://doi.org/10.1103/PhysRevB.88.134525

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abstract = "The total spectral weight S of the emergent low-energy quasiparticles in high-temperature superconductors (HTSCs) is explored by x-ray absorption spectroscopy. In order to examine the applicability of the Hubbard model, regimes that cover from zero doping to overdoping are investigated. In contrast to results of mean-field theory, we found that S deviates from linear dependence on the doping level p. The slope of S versus p changes continuously throughout the whole doping range with no sign of saturation up to p=0.23. Therefore, the picture of the Zhang-Rice singlet remains intact within the most prominent doping regimes of HTSCs.",

keywords = "ELECTRONIC-STRUCTURE, DOPED HOLES, SUPERCONDUCTOR, OXYGEN",

author = "Chen, {Y. J.} and Jiang, {M. G.} and Chih-Wei Luo and Jiunn-Yuan Lin and Kaung-Hsiung Wu and Lee, {J. M.} and Chen, {J. M.} and Kuo, {Y. K.} and Jenh-Yih Juang and Mou, {Chung Yu}",

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AU - Chen, Y. J.

AU - Jiang, M. G.

AU - Luo, Chih-Wei

AU - Lin, Jiunn-Yuan

AU - Wu, Kaung-Hsiung

AU - Lee, J. M.

AU - Chen, J. M.

AU - Kuo, Y. K.

AU - Juang, Jenh-Yih

AU - Mou, Chung Yu

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N2 - The total spectral weight S of the emergent low-energy quasiparticles in high-temperature superconductors (HTSCs) is explored by x-ray absorption spectroscopy. In order to examine the applicability of the Hubbard model, regimes that cover from zero doping to overdoping are investigated. In contrast to results of mean-field theory, we found that S deviates from linear dependence on the doping level p. The slope of S versus p changes continuously throughout the whole doping range with no sign of saturation up to p=0.23. Therefore, the picture of the Zhang-Rice singlet remains intact within the most prominent doping regimes of HTSCs.

AB - The total spectral weight S of the emergent low-energy quasiparticles in high-temperature superconductors (HTSCs) is explored by x-ray absorption spectroscopy. In order to examine the applicability of the Hubbard model, regimes that cover from zero doping to overdoping are investigated. In contrast to results of mean-field theory, we found that S deviates from linear dependence on the doping level p. The slope of S versus p changes continuously throughout the whole doping range with no sign of saturation up to p=0.23. Therefore, the picture of the Zhang-Rice singlet remains intact within the most prominent doping regimes of HTSCs.

KW - ELECTRONIC-STRUCTURE

KW - DOPED HOLES

KW - SUPERCONDUCTOR

KW - OXYGEN

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JO - Physical Review B - Condensed Matter and Materials Physics

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ER -

Doping evolution of Zhang-Rice singlet spectral weight: A comprehensive examination by x-ray absorption spectroscopy

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