The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.
Electronic correlations in the iron pnictides
Open accessAbstract
When electrons experience Coulomb repulsion, their kinetic energy becomes significantly reduced. This effect has now been measured in the pnictide superconductor LaFePO, and shows that correlations between electrons in these materials are just as strong as in some copper oxide and ruthenate superconductors. In correlated metals derived from Mott insulators, the motion of an electron is impeded by Coulomb repulsion due to other electrons. This phenomenon causes a substantial reduction in the electron’s kinetic energy, leading to remarkable experimental manifestations in optical spectroscopy1. The high-transition-temperature (Tc) superconducting cuprates are perhaps the most studied examples of such correlated metals. The occurrence of high-Tc superconductivity in the iron pnictides2,3,4 puts a spotlight on the relevance of correlation effects in these materials5. Here, we present an infrared and optical study on single crystals of the iron pnictide superconductor LaFePO. We find clear evidence of electronic correlations in metallic LaFePO with the kinetic energy of the electrons reduced to half of that predicted by band theory of nearly free electrons. We deduce that electronic many-body effects are important in the iron pnictides despite the absence of a Mott transition.
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Cites
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Self-citationKramers–Kronig constrained variational analysis of optical spectra
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Electrodynamics of high-Tcsuperconductors
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Self-citationIsLaFeAsO1−xFxan Electron-Phonon Superconductor?
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Canonical Entropy and Phase Transition of Rotating Black Hole
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Band structure and transport properties ofCrO2
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Cited by
Strong Correlations from Hund’s Coupling
Georges, A., Medici, L. D., & Mravlje, J. (2013) · Annual Review of Condensed Matter Physics · doi:10.1146/annurev-conmatphys-020911-125045 · Cited by 852
Light scattering and surface plasmons on small spherical particles
Fan, X., Zheng, W., & Singh, D. J. (2014) · Light: Science & Applications · doi:10.1038/lsa.2014.60 · Cited by 623
Self-citationMagnetism and its microscopic origin in iron-based high-temperature superconductors
Dai, P., Hu, J., & Dagotto, E. (2012) · Nature Physics · doi:10.1038/nphys2438 · Cited by 543
High-temperature superconductivity in iron pnictides and chalcogenides
Si, Q., Yu, R., & Abrahams, E. (2016) · Nature Reviews Materials · doi:10.1038/natrevmats.2016.17 · Cited by 445
Correlated metals as transparent conductors
Zhang, L., Zhou, Y., Guo, L., Zhao, W., Barnes, A., Zhang, H.-T., Eaton, C., Zheng, Y., Brahlek, M., Haneef, H. F., et al. (2016) · Nature Materials · doi:10.1038/nmat4493 · Cited by 386
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Metadata
- Authors
- Qazilbash, M. M., Hamlin, J. J., Baumbach, R. E., Zhang, L., Singh, D. J., Maple, M. B., & Basov, D. N.
- Venue
- Nature Physics
- Published
- 2009-07-26
- Volume
- 5
- Issue
- 9
- Pages
- 647-650
- ISSN
- 1745-2473 (ISSN-L)
- 1745-2481
- OpenAlex
- W2095672605
- Cited by
- 366
- References
- 23
- FWCI
- 19.28
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Qazilbash, M. M., Hamlin, J. J., Baumbach, R. E., Zhang, L., Singh, D. J., Maple, M. B., & Basov, D. N. (2009). Electronic correlations in the iron pnictides. Nature Physics. https://doi.org/10.1038/nphys1343
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