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Precise dd excitati...
Precise dd excitations and commensurate intersite Coulomb interactions in the dissimilar cuprates YBa2Cu3 O7-y and La2-xSrxCu O4
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- Huang, Shih Wen (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,Advanced Light Source, Berkeley,Paul Scherrer Institute,Lawrence Berkeley National Laboratory
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- Wray, L. Andrew (author)
- New York University
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- Shao, Yu Cheng (author)
- National Synchrotron Radiation Research Center Taiwan,Advanced Light Source, Berkeley
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- Wu, Cheng Yau (author)
- National Yang Ming Chiao Tung University
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- Wang, Shun Hung (author)
- National Yang Ming Chiao Tung University
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- Lee, Jenn Min (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Chen, Y. J. (author)
- Advanced Light Source, Berkeley
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- Schoenlein, R. W. (author)
- Lawrence Berkeley National Laboratory,Stanford Linear Accelerator Center (SLAC)
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- Mou, C. Y. (author)
- National Tsing Hua University
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- Chuang, Yi De (author)
- Advanced Light Source, Berkeley
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- Lin, J. Y. (author)
- National Yang Ming Chiao Tung University
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Physical Review B. - 2469-9950. ; 107:13
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Abstract
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- Using high-resolution extreme ultraviolet resonant inelastic x-ray scattering (EUVRIXS) spectroscopy at the Cu M-edge, we observed doping dependent spectral shifts of interorbital (dd) excitations of YBa2Cu3O7-y and La2-xSrxCuO4. With increasing the hole doping level from undoped to optimally doped superconducting compositions, the leading edge of dd excitations is found to shift towards lower energy loss in a roughly linear trend that is irrespective of the cuprate species. The magnitude of the energy shift can be explained by including a 0.15 eV Coulomb attraction between Cu3d(x2-y2) electrons and the doped holes on the surrounding oxygens in the atomic multiplet calculations. The consistent energy shift between distinct cuprate families suggests that this intersite Coulomb interaction energy scale is relatively material independent, and provides an important reference point for understanding charge density wave phenomena in the cuprate phase diagram.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Huang, Shih Wen
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Wray, L. Andrew
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Shao, Yu Cheng
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Wu, Cheng Yau
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Wang, Shun Hung
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Lee, Jenn Min
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show more...
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Chen, Y. J.
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Schoenlein, R. W ...
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Mou, C. Y.
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Chuang, Yi De
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Lin, J. Y.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
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Physical Review ...
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Lund University