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Low Energy Electronic Structures in Electron-Doped and Hole-Doped Superconducting (Ba/K)(Fe/Co)2As2

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Abstract

Systematic high resolution angle-resolved photoemission spectroscopic studies have been performed on the optimally electron-doped BaFe1.82Co0.18As2 (T c =24 K) and hole-doped Ba0.6K0.4Fe2As2 (T c =37 K) superconductors. The superconducting gap is nearly isotropic in momentum space. Utilizing different experimental geometries, the detailed electronic band structures were determined experimentally and compared with first principle LDA calculations. The overall bandwidth is reduced by a factor of 2. However, the low energy quasiparticle dispersions near zone corner exhibit stronger renormalization by a factor of 4–5. k z  dependence was observed on the electron pockets at zone corner.

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References

  1. Kamihara, Y., et al.: J. Am. Chem. Soc. 130, 3296 (2008)

    Article  Google Scholar 

  2. Ren, Z.A., et al.: Chin. Phys. Lett. 25, 2215 (2008)

    Article  ADS  Google Scholar 

  3. Chen, G.F., et al.: Phys. Rev. Lett. 100, 247002 (2008)

    Article  ADS  Google Scholar 

  4. Chen, X.H., et al.: Nature 453, 761 (2008)

    Article  ADS  Google Scholar 

  5. de la Cruz, C., et al.: Nature (London) 453, 899 (2008)

    Article  ADS  Google Scholar 

  6. Hsieh, D., et al.: http://arXiv.org/abs/0812.2289 (2008)

  7. Zhang, Y., et al.: http://arxiv.org/abs/0808.2738 (2008)

  8. Yang, L.X., et al.: http://arxiv/abs/0806.2627 (2008)

  9. Zabolotnyy, V.B., et al.: http://arxiv.org/abs/0808.2454 (2008)

  10. Wray, L., et al.: Phys. Rev. B 78, 184508 (2008)

    Article  ADS  Google Scholar 

  11. Liu, C., et al.: Phys. Rev. Lett. 101, 177005 (2008)

    Article  ADS  Google Scholar 

  12. Ding, H., et al.: Europhys. Lett. 83, 47001 (2008)

    Article  ADS  Google Scholar 

  13. Ding, H., et al.: http://arxiv.org/abs/0812.0534 (2008)

  14. Zhao, L., et al.: Chin. Phys. Lett. 25, 4402 (2008)

    Article  ADS  Google Scholar 

  15. Nekrasov, I.A., et al.: JETP Lett. 88, 144 (2008)

    Article  ADS  Google Scholar 

  16. Qian, D., et al.: Phys. Rev. Lett. 97, 186405 (2006)

    Article  ADS  Google Scholar 

  17. Singh, D.J.: Phys. Rev. B 78, 094511 (2008)

    Article  ADS  Google Scholar 

Download references

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Authors and Affiliations

  1. Department of Physics, Shanghai Jiao Tong University, Shanghai, 200240, China

    D. Qian

  2. Department of Physics, Princeton University, Princeton, NJ, 08544, USA

    D. Qian, Y. Xia, L. Wray, D. Hsieh & M. Z. Hasan

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  1. D. Qian
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  2. Y. Xia
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  3. L. Wray
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  4. D. Hsieh
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  5. M. Z. Hasan
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Correspondence to D. Qian.

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Qian, D., Xia, Y., Wray, L. et al. Low Energy Electronic Structures in Electron-Doped and Hole-Doped Superconducting (Ba/K)(Fe/Co)2As2 . J Supercond Nov Magn 23, 617–619 (2010). https://doi.org/10.1007/s10948-009-0609-z

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  • DOI: https://doi.org/10.1007/s10948-009-0609-z

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