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 | |
| State | Published - 1991 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Electronic states in La2-xSrxCuO4+ probed by soft-x-ray absorption. / Chen, C. T.; Sette, F.; Ma, Y.; Hybertsen, M. S.; Stechel, Ellen; 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
}
TY - JOUR
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, Ellen
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
Y1 - 1991
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.
UR - http://www.scopus.com/inward/record.url?scp=0001318914&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0001318914&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.66.104
DO - 10.1103/PhysRevLett.66.104
M3 - Article
AN - SCOPUS:0001318914
VL - 66
SP - 104
EP - 107
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 1
ER -