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Competing orders and spin-density-wave instability in La(O 1−x F x )FeAs
Open accessAbstract
The interplay between different ordered phases, such as superconducting, charge or spin ordered phases, is of central interest in condensed matter physics. The very recent discovery of superconductivity with a remarkable T$_c$= 26 K in Fe-based oxypnictide La(O$_{1-x}$F$_x$)FeAs is a surprise to the scientific community\cite{Kamihara08}. The pure LaOFeAs itself is not superconducting but shows an anomaly near 150 K in both resistivity and dc magnetic susceptibility. Here we provide combined experimental and theoretical evidences showing that the anomaly is caused by the spin-density-wave (SDW) instability, and electron-doping by F suppresses the SDW instability and recovers the superconductivity. Therefore, the La(O$_{1-x}$F$_x$)FeAs offers an exciting new system showing competing orders in layered compounds.
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Cited by
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Bao, W., Qiu, Y., Huang, Q., Green, M. A., Zajdel, P., Fitzsimmons, M. R., Zhernenkov, M., Chang, S., Fang, M., Qian, B., et al. (2009) · Physical Review Letters · doi:10.1103/physrevlett.102.247001 · Cited by 623
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Si, Q., Yu, R., & Abrahams, E. (2016) · Nature Reviews Materials · doi:10.1038/natrevmats.2016.17 · Cited by 445
Quasi-2D Fermi surface in the anomalous superconductor UTe2
Eaton, A. G., Weinberger, T. I., Popiel, N. J. M., Wu, Z., Hickey, A. J., Cabala, A., Pospíšil, J., Prokleška, J., Haidamak, T., Bastien, G., et al. (2024) · Nature Communications · doi:10.1038/s41467-023-44110-4 · Cited by 54
Wu, L., Si, J., Guan, S., Zhang, H., Dou, J., Luo, J., Yang, J., Yu, H., Zhang, J., Ma, X., et al. (2024) · Physical Review Letters · doi:10.1103/physrevlett.132.166002 · Cited by 28
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Metadata
- Authors
- Dong, J., Zhang, H. J., Xu, G., Li, Z., Li, G., Hu, W. Z., Wu, D., Chen, G. F., Dai, X., Luo, J. L., Fang, Z., & Wang, N. L.
- Venue
- EPL (Europhysics Letters)
- Publisher
- IOP Publishing
- Published
- 2008-06-27
- Volume
- 83
- Issue
- 2
- Pages
- 27006
- ISSN
- 0295-5075 (ISSN-L)
- 1286-4854
- OpenAlex
- W1984086045
- Cited by
- 663
- References
- 0
- FWCI
- 51.92
- Type
- journal article
- Language
- en
- Open access
- green
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- Dong, J., Zhang, H. J., Xu, G., Li, Z., Li, G., Hu, W. Z., Wu, D., Chen, G. F., Dai, X., Luo, J. L., Fang, Z., & Wang, N. L. (2008). Competing orders and spin-density-wave instability in La(O 1−x F x )FeAs. EPL (Europhysics Letters). https://doi.org/10.1209/0295-5075/83/27006
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