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  Charge-orbital-lattice coupling effects in the dd excitation profile of one-dimensional cuprates

Lee, J. J., Moritz, B., Lee, W. S., Yi, M., Jia, C. J., Sorini, A. P., et al. (2014). Charge-orbital-lattice coupling effects in the dd excitation profile of one-dimensional cuprates. Physical Review B, 89(4): 041104(R). doi:10.1103/PhysRevB.89.041104.

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PhysRevB.89.041104.pdf (Publisher version), 2MB
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 Creators:
Lee, J. J.1, 2, Author
Moritz, B.1, 3, 4, Author
Lee, W. S.1, 2, Author
Yi, M.1, 2, Author
Jia, C. J.1, Author
Sorini, A. P.1, Author
Kudo, K.5, Author
Koike, Y.6, Author
Zhou, K. J.7, Author
Monney, Claude7, 8, Author           
Strocov, V.7, Author
Patthey, L.7, Author
Schmitt, T.7, Author
Devereaux, T. P.1, 2, Author
Shen, Z. X.1, 2, Author
Affiliations:
1Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA, ou_persistent22              
2Departments of Physics and Applied Physics, and Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, USA, ou_persistent22              
3Department of Physics and Astrophysics, University of North Dakota, Grand Forks, North Dakota 58202, USA, ou_persistent22              
4Department of Physics, Northern Illinois University, DeKalb, Illinois 60115, USA, ou_persistent22              
5Department of Physics, Okayama University, Okayama 700-8530, Japan, ou_persistent22              
6Department of Applied Physics, Tohoku University, Sendai, Japan, ou_persistent22              
7SLS, Paul Scherrer Institute, CH-5232, Villigen PSI, Switzerland, ou_persistent22              
8Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              

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 Abstract: We identify dd excitations in the quasi-one-dimensional compound Ca2Y2Cu5O10 using resonant inelastic x-ray scattering. By tuning across the Cu L3 edge, we observe abrupt shifts in the dd-peak positions as a function of incident photon energy. This observation demonstrates orbital-specific coupling of the high-energy excited states of the system to the low-energy degrees of freedom. A Franck-Condon treatment of electron-lattice coupling, consistent with other measurements in this compound, reproduces these shifts, explains the Gaussian line shapes, and highlights charge-orbital-lattice renormalization in the high-energy d manifold.

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Language(s): eng - English
 Dates: 2013-12-092013-11-202014-01-092014-01-09
 Publication Status: Issued
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevB.89.041104
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Title: Physical Review B
  Other : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 89 (4) Sequence Number: 041104(R) Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008