Electronic states in La2-xSrxCuO4+ probed by soft-x-ray absorption

C. T. Chen; F. Sette; Y. Ma; M. S. Hybertsen; E. B. Stechel; W. M.C. Foulkes; M. Schulter; S. W. Cheong; A. S. Cooper; L. W. Rupp; B. Batlogg; Y. L. Soo; Z. H. Ming; A. Krol; Y. H. Kao

doi:10.1103/PhysRevLett.66.104

Electronic states in La2-xSrxCuO4+ probed by soft-x-ray absorption

C. T. Chen, F. Sette, Y. Ma, M. S. Hybertsen, E. B. Stechel, W. M.C. Foulkes, M. Schulter, S. W. Cheong, A. S. Cooper, L. W. Rupp, B. Batlogg, Y. L. Soo, Z. H. Ming, A. Krol, Y. H. Kao

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Abstract

Oxygen K-edge absorption spectra of carefully characterized La2-xSrxCuO4+ samples were measured using a bulk-sensitive fluoresence-yield-detection method. They reveal two distinct pre-edge peaks which evolve systematically as a function of Sr concentration. The measured spectra are quantitatively described by calculations based on the Hubbard model, including local Coulomb interactions and core-hole excitonic correlations. The absorption data are consistent with a description of electronic states based on a doped charge-transfer insulator.

Original language	English (US)
Pages (from-to)	104-107
Number of pages	4
Journal	Physical Review Letters
Volume	66
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.66.104
State	Published - 1991

ASJC Scopus subject areas

Physics and Astronomy(all)

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Chen, C. T., Sette, F., Ma, Y., Hybertsen, M. S., Stechel, E. B., Foulkes, W. M. C., Schulter, M., Cheong, S. W., Cooper, A. S., Rupp, L. W., Batlogg, B., Soo, Y. L., Ming, Z. H., Krol, A., & Kao, Y. H. (1991). Electronic states in La2-xSrxCuO4+ probed by soft-x-ray absorption. Physical Review Letters, 66(1), 104-107. https://doi.org/10.1103/PhysRevLett.66.104

Electronic states in La2-xSrxCuO4+ probed by soft-x-ray absorption. / Chen, C. T.; Sette, F.; Ma, Y.; Hybertsen, M. S.; Stechel, E. B.; Foulkes, W. M.C.; Schulter, M.; Cheong, S. W.; Cooper, A. S.; Rupp, L. W.; Batlogg, B.; Soo, Y. L.; Ming, Z. H.; Krol, A.; Kao, Y. H.

In: Physical Review Letters, Vol. 66, No. 1, 1991, p. 104-107.

Research output: Contribution to journal › Article

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abstract = "Oxygen K-edge absorption spectra of carefully characterized La2-xSrxCuO4+ samples were measured using a bulk-sensitive fluoresence-yield-detection method. They reveal two distinct pre-edge peaks which evolve systematically as a function of Sr concentration. The measured spectra are quantitatively described by calculations based on the Hubbard model, including local Coulomb interactions and core-hole excitonic correlations. The absorption data are consistent with a description of electronic states based on a doped charge-transfer insulator.",

author = "Chen, {C. T.} and F. Sette and Y. Ma and Hybertsen, {M. S.} and Stechel, {E. B.} and Foulkes, {W. M.C.} and M. Schulter and Cheong, {S. W.} and Cooper, {A. S.} and Rupp, {L. W.} and B. Batlogg and Soo, {Y. L.} and Ming, {Z. H.} and A. Krol and Kao, {Y. H.}",

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T1 - Electronic states in La2-xSrxCuO4+ probed by soft-x-ray absorption

AU - Chen, C. T.

AU - Sette, F.

AU - Ma, Y.

AU - Hybertsen, M. S.

AU - Stechel, E. B.

AU - Foulkes, W. M.C.

AU - Schulter, M.

AU - Cheong, S. W.

AU - Cooper, A. S.

AU - Rupp, L. W.

AU - Batlogg, B.

AU - Soo, Y. L.

AU - Ming, Z. H.

AU - Krol, A.

AU - Kao, Y. H.

PY - 1991

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N2 - Oxygen K-edge absorption spectra of carefully characterized La2-xSrxCuO4+ samples were measured using a bulk-sensitive fluoresence-yield-detection method. They reveal two distinct pre-edge peaks which evolve systematically as a function of Sr concentration. The measured spectra are quantitatively described by calculations based on the Hubbard model, including local Coulomb interactions and core-hole excitonic correlations. The absorption data are consistent with a description of electronic states based on a doped charge-transfer insulator.

AB - Oxygen K-edge absorption spectra of carefully characterized La2-xSrxCuO4+ samples were measured using a bulk-sensitive fluoresence-yield-detection method. They reveal two distinct pre-edge peaks which evolve systematically as a function of Sr concentration. The measured spectra are quantitatively described by calculations based on the Hubbard model, including local Coulomb interactions and core-hole excitonic correlations. The absorption data are consistent with a description of electronic states based on a doped charge-transfer insulator.

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