Skip to main content
SpringerLink
Log in

Electronic Structures of the Superconducting Single-Layer FeSe/SrTiO\(_3\) Films

  • Chapter
  • First Online:
Angle-Resolved Photoemission Spectroscopy on High-Temperature Superconductors

Part of the book series: Springer Theses ((Springer Theses))

  • 657 Accesses

Abstract

Much attention has been attracted by the recent discovery of iron-based high-temperature superconductors. Nevertheless, two prominent issues are yet to be addressed. The first one is to find out a way to further increase the superconducting transition temperature (\(\mathrm{T}_c\)) in iron-based superconductors, and the second one is to understand the superconductivity mechanism. Recently, possible high \(\mathrm{T}_c\) superconductivity has been reported in a single-layer FeSe/SrTiO\(_3\) film. The observation of a high transition temperature in a material with the simplest crystal structure provides an ideal platform to study the above important issues. We have performed investigations of the electronic structure and superconducting gap of the single-layer FeSe superconductor. Its Fermi surface is distinct from other iron-based superconductors, consisting only of electron-like pockets near the zone corner without indication of any Fermi surface around the zone center. The superconducting gap is nearly isotropic, and the temperature dependence of the superconducting gap gives a transition temperature \(\mathrm{T}_c\sim 55\) K for this superconducting film. Our results have established a clear case that high \(\mathrm{T}_c\) superconductivity in iron-based superconductors can be realized with such a simple electronic structure.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Log in via an institution
Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 84.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 109.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 109.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

References

  1. Wang, Q., Li, Z., Zhang, W., Zhang, Z., Zhang, J., Li, W., Ding, H., Ou, Y., Deng, P., Chang, K., Wen, J., Song, C., He, K., Jia, J., Ji, S., Wang, Y., Wang, L., Chen, X., Ma, X., Xue, Q.-K.: Interface-induced high-temperature superconductivity in single unit-cell FeSe films on SrTiO\(_3\). Chin. Phys. Lett. 29(3), 037402 (2012)

    Article  ADS  Google Scholar 

  2. Kamihara, Y., Watanabe, T., Hirano, M., Hosono, H.: Iron-based layered superconductor \({\text{ LaO }_{1-x}}\text{ F }_x\text{ FeAs }\) (x \(=\) 0.05–0.12) with \(T_{\rm c} = 26\) K. J. Am. Chem. Soc. 130(11), 32963297 (2008)

    Article  Google Scholar 

  3. Ren, Z.-A., Lu, W., Yang, J., Yi, W., Shen, X.-L., Li, Z.-C., Che, G.-C., Dong, X.-L., Sun, L.-L., Zhou, F., Zhao, Z.-X.: Superconductivity at 55 K in iron-based f-doped layered quaternary compound SmO\(_{1-x}\)F\(_x\)FeAs. Chin. Phys. Lett. 25(6), 2215 (2008)

    Article  ADS  Google Scholar 

  4. Rotter, M., Tegel, M., Johrendt, D.: Superconductivity at 38 K in the iron arsenide (Ba\(_{1-x}\)K\(_x\))Fe\(_2\)As\(_2\). Phys. Rev. Lett. 101(10), 107006 (2008)

    Article  ADS  Google Scholar 

  5. Hsu, F.C., Luo, J.Y., Yeh, K.W., Chen, T.K., Huang, T.W., Wu, P.M., Lee, Y.C., Huang, Y.L., Chu, Y.Y., Yan, D.C., Wu, M.K.: Superconductivity in the PbO-type structure \(\alpha \)-FeSe. Proc. Natl. Acad. Sci. USA 105(38), 14262–14264 (2008)

    Article  ADS  Google Scholar 

  6. Wang, X.C., Liu, Q.Q., Lv, Y.X., Gao, W.B., Yang, L.X., Yu, R.C., Li, F.Y., Jin, C.Q.: The superconductivity at 18 K in LiFeAs system. Solid State Commun. 148(11), 538–540 (2008)

    Article  ADS  Google Scholar 

  7. Medvedev, S., McQueen, T.M., Troyan, I.A., Palasyuk, T., Eremets, M.I., Cava, R.J., Naghavi, S., Casper, F., Ksenofontov, V., Wortmann, G., Felser, C.: Electronic and magnetic phase diagram of \(\beta \)-Fe\(_{1.01}\)Se with superconductivity at 36.7 K under pressure. Nat. Mater. 8(8), 630–633 (2009)

    Article  ADS  Google Scholar 

  8. Guo, J., Jin, S., Wang, G., Wang, S., Zhu, K., Zhou, T., He, M., Chen, X.: Superconductivity in the iron selenide K\(_x\)Fe\(_2\)Se\(_2\) (\(0\le x\le 1.0\)). Phys. Rev. B 82(18), 180520(R) (2010)

    Article  ADS  Google Scholar 

  9. Fang, M.H., Wang, H.D., Dong, C.H., Li, Z.J., Feng, C.M., Chen, J., Yuan, H.Q.: Fe-based superconductivity with \({\rm T}_c= 31\) K bordering an antiferromagnetic insulator in (Tl, K)Fe\(_x\)Se\(_2\). Europhys. Lett. 94(2), 27009 (2011)

    Article  ADS  Google Scholar 

  10. Sun, L., Chen, X.J., Guo, J., Gao, P., Huang, Q.Z., Wang, H., Fang, M., Chen, X., Chen, G., Zhang, C., Gu, D., Dong, X., Wang, L., Yang, K., Li, A., Dai, X., Mao, H., Zhao, Z.-X.: Re-emerging superconductivity at 48 k in iron chalcogenides. Nature 483(7387), 67–69 (2012)

    Article  ADS  Google Scholar 

  11. Zhang, Y., Ye, Z.R., Ge, Q.Q., Chen, F., Jiang, J., Xu, M., Xie, B.P., Feng, D.L.: Nodal superconducting-gap structure in ferropnictide superconductor BaFe\(_2\)(As\(_{0.7}\)P\(_{0.3}\))\(_2\). Nat. Phys. 8(5), 371–375 (2012)

    Article  Google Scholar 

  12. Mou, D.X., Zhao, L., Zhou, X.J.: Structural, magnetic and electronic properties of the iron-chalcogenide A\(_x\)Fe\(_{2-y}\)Se\(_2\) (A \(=\) K, Cs, Rb, and Tl, etc.) superconductors. Front. Phys. 6(4), 410–428 (2011)

    Google Scholar 

  13. Liu, G., Wang, G., Zhu, Y., Zhang, H., Zhang, G., Wang, X., Zhou, Y., Zhang, W., Liu, H., Zhao, L., Meng, J., Dong, X., Chen, C., Xu, Z., Zhou, X.J.: Development of a vacuum ultraviolet laser-based angle-resolved photoemission system with a superhigh energy resolution better than 1 meV. Rev. Sci. Instrum. 79(2), 023105 (2008)

    Article  ADS  Google Scholar 

  14. Liu, D., Zhang, W., Mou, D., He, J., Ou, Y.B., Wang, Q.Y., Li, Z., Wang, L., Zhao, L., He, S., Peng, Y., Liu, X., Chen, C., Yu, L., Liu, G., Dong, X., Zhang, J., Chen, C., Xu, Z., Hu, J., Chen, X., Ma, X., Xue, Q., Zhou, X.J.: Electronic origin of high-temperature superconductivity in single-layer FeSe superconductor. Nat. Commun. 3, 931 (2012)

    Article  ADS  Google Scholar 

  15. Zhang, Y., Yang, L.X., Xu, M., Ye, Z.R., Chen, F., He, C., Xu, H.C., Jiang, J., Xie, B.P., Ying, J.J., Wang, X.F., Chen, X.H., Hu, J.P., Matsunami, M., Kimura, S., Feng, D.L.: Nodeless superconducting gap in A\(_x\)Fe\(_2\)Se\(_2\) (A \(=\) K, Cs) revealed by angle-resolved photoemission spectroscopy. Nat. Mater. 10(4), 273–277 (2011)

    Article  ADS  Google Scholar 

  16. Mou, D., Liu, S., Jia, X., He, J., Peng, Y., Zhao, L., Yu, L., Liu, G., He, S., Dong, X., Zhang, J., Wang, H., Dong, C., Fang, M., Wang, X., Peng, Q., Wang, Z., Zhang, S., Yang, F., Xu, Z., Chen, C., Zhou, X.J.: Distinct Fermi surface topology and nodeless superconducting gap in a (Tl\(_{0.58}\)Rb\(_{0.42}\))Fe\(_{1.72}\)Se\(_2\) superconductor. Phys. Rev. Lett. 106(10), 107001 (2011)

    Article  ADS  Google Scholar 

  17. Zhao, L., Mou, D., Liu, S., Jia, X., He, J., Peng, Y., Yu, L., Liu, X., Liu, G., He, S., Dong, X., Zhang, J., He, J.B., Wang, D.M., Chen, G.F., Guo, J.G., Chen, X.L., Wang, X., Peng, Q., Wang, Z., Zhang, S., Yang, F., Xu, Z., Chen, C., Zhou, X.J.: Common Fermi-surface topology and nodeless superconducting gap of K\(_{0.68}\)Fe\(_{1.79}\)Se\(_2\) and (Tl\(_{0.45}\)K\(_{0.34}\))Fe\(_{1.84}\)Se\(_2\) superconductors revealed via angle-resolved photoemission. Phys. Rev. B 83(14), 140508(R) (2011)

    Article  ADS  Google Scholar 

  18. Qian, T., Wang, X.P., Jin, W.C., Zhang, P., Richard, P., Xu, G., Dai, X., Fang, Z., Guo, J.-G., Chen, X.-L., Ding, H.: Absence of a holelike Fermi surface for the iron-based K\(_{0.8}\)Fe\(_{1.7}\)Se\(_2\) superconductor revealed by angle-resolved photoemission spectroscopy. Phys. Rev. Lett. 106(18), 187001 (2011)

    Article  ADS  Google Scholar 

  19. Zhao, L., Liu, H., Zhang, W., Meng, J., Jia, X., Liu, G., Dong, X., Chen, G., Luo, J., Wang, N., Lu, W., Wang, G., Zhou, Y., Zhu, Y., Wang, X., Xu, Z., Chen, C., Zhou, X.J.: Multiple nodeless superconducting gaps in (Ba\(_{0.6}\)K\(_{0.4}\))Fe\(_2\)As\(_2\) superconductor from angle-resolved photoemission spectroscopy. Chin. Phys. Lett. 25(12), 4402 (2008)

    Article  ADS  Google Scholar 

  20. Ding, H., Richard, P., Nakayama, K., Sugawara, K., Arakane, T., Sekiba, Y., Takayama, A., Souma, S., Sato, T., Takahashi, T., Wang, Z., Dai, X., Fang, Z., Chen, G.F., Luo, J.L., Wang, N.L.: Observation of Fermi-surface-dependent nodeless superconducting gaps in Ba\(_{0.6}\)K\(_{0.4}\)Fe\(_2\)As\(_2\). Europhys. Lett. 83(4), 47001 (2008)

    Article  ADS  Google Scholar 

  21. Evtushinsky, D.V., Inosov, D.S., Zabolotnyy, V.B., Koitzsch, A., Knupfer, M., Büchner, B., Viazovska, M.S., Sun, G.L., Hinkov, V., Boris, A.V., Lin, C.T., Keimer, B., Varykhalov, A., Kordyuk, A.A., Borisenko, S.V.: Momentum dependence of the superconducting gap in Ba\(_{1-x}\)K\(_x\)Fe\(_2\)As\(_2\). Phys. Rev. B 79(5), 054517 (2009)

    Article  ADS  Google Scholar 

  22. Wray, L., Qian, D., Hsieh, D., Xia, Y., Li, L., Checkelsky, J.G., Pasupathy, A., Gomes, K.K., Parker, C.V., Fedorov, A.V., Chen, G.F., Luo, J.L., Yazdani, A., Ong, N.P., Wang, N.L., Hasan, M.Z.: Momentum dependence of superconducting gap, strong-coupling dispersion kink, and tightly bound Cooper pairs in the high-T\(_c\) (Sr, Ba)\(_{1-x}\)(K, Na)\(_x\)Fe\(_2\)As\(_2\) superconductors. Phys. Rev. B 78(18), 184508 (2008)

    Article  ADS  Google Scholar 

  23. Tamai, A., Ganin, A.Y., Rozbicki, E., Bacsa, J., Meevasana, W., King, P.D.C., Caffio, M., Schaub, R., Margadonna, S., Prassides, K., Rosseinsky, M.J., Baumberger, F.: Strong electron correlations in the normal state of the iron-based FeSe\(_{0.42}\)Te\(_{0.58}\) superconductor observed by angle-resolved photoemission spectroscopy. Phys. Rev. Lett. 104(9), 097002 (2010)

    Article  ADS  Google Scholar 

  24. Ni, N., Tillman, M.E., Yan, J.Q., Kracher, A., Hannahs, S.T., Bud’ko, S.L., Canfield, P.C.: Effects of Co substitution on thermodynamic and transport properties and anisotropic H\(_{c2}\) in Ba(Fe\(_{1-x}\)Co\(_x\))\(_2\)As\(_2\) single crystals. Phys. Rev. B 78(21), 214515 (2008)

    Article  ADS  Google Scholar 

  25. Singh, D.J., Du, M.H.: Density functional study of LaFeAsO\(_{1-x}\)F\(_x\): a low carrier density superconductor near itinerant magnetism. Phys. Rev. Lett. 100(23), 237003 (2008)

    Article  ADS  Google Scholar 

  26. Kuroki, K., Onari, S., Arita, R., Usui, H., Tanaka, Y., Kontani, H., Aoki, H.: Unconventional pairing originating from the disconnected Fermi surfaces of superconducting LaFeAsO\(_{1-x}\)F\(_x\). Phys. Rev. Lett. 101(8), 087004 (2008)

    Article  ADS  Google Scholar 

  27. Norman, M.R., Randeria, M., Ding, H., Campuzano, J.C.: Phenomenology of the low-energy spectral function in high-\({\rm T}_c\) superconductors. Phys. Rev. B 57, 11093–11096(R) (1998)

    Article  ADS  Google Scholar 

  28. Mazin, I.I., Singh, D.J., Johannes, M.D., Du, M.H.: Unconventional superconductivity with a sign reversal in the order parameter of LaFeAsO\(_{1-x}\)F\(_x\). Phys. Rev. Lett. 101(5), 057003 (2008)

    Article  ADS  Google Scholar 

  29. Mazin, I.I., Johannes, M.D.: A key role for unusual spin dynamics in ferropnictides. Nat. Phys. 5(2), 141–145 (2009)

    Article  Google Scholar 

  30. Wang, F., Zhai, H., Lee, D.H.: Antiferromagnetic correlation and the pairing mechanism of the cuprates and iron pnictides: a view from the functional renormalization group studies. Europhys. Lett. 85(3), 37005 (2009)

    Article  ADS  Google Scholar 

  31. Wang, F., Zhai, H., Ran, Y., Vishwanath, A., Lee, D.H.: Functional renormalization-group study of the pairing symmetry and pairing mechanism of the FeAs-based high-temperature superconductor. Phys. Rev. Lett. 102(4), 047005 (2009)

    Article  ADS  Google Scholar 

  32. Chubukov, A.V., Efremov, D.V., Eremin, I.: Magnetism, superconductivity, and pairing symmetry in iron-based superconductors. Phys. Rev. B 78(13), 134512 (2008)

    Article  ADS  Google Scholar 

  33. Stanev, V., Kang, J., Tesanovic, Z.: Spin fluctuation dynamics and multiband superconductivity in iron pnictides. Phys. Rev. B 78, 184509 (2008)

    Article  ADS  Google Scholar 

  34. Maier, T.A., Graser, S., Hirschfeld, P.J., Scalapino, D.J.: \(d\)-wave pairing from spin fluctuations in the K\(_x\)Fe\(_{2-y}\)Se\(_2\) superconductors. Phys. Rev. B 83(10), 100515(R) (2011)

    Article  ADS  Google Scholar 

  35. Wang, F., Yang, F., Gao, M., Lu, Z.Y., Xiang, T., Lee, D.H.: The electron pairing of K\(_x\)Fe\(_{2-y}\)Se\(_2\). Europhy. Lett. 93(5), 57003 (2011)

    Article  ADS  Google Scholar 

  36. Das, T., Balatsky, A.V.: Stripes, spin resonance, and nodeless d-wave pairing symmetry in Fe\(_2\)Se\(_2\)-based layered superconductors. Phys. Rev. B 84(1), 014521 (2011)

    Article  ADS  Google Scholar 

  37. Mazin, I.I.: Symmetry analysis of possible superconducting states in K\(_x\)Fe\(_y\)Se\(_2\) superconductors. Phys. Rev. B 84(2), 024529 (2011)

    Article  ADS  Google Scholar 

  38. Song, C.L., Wang, Y.L., Cheng, P., Jiang, Y.P., Li, W., Zhang, T., Li, Z., He, K., Wang, L., Jia, J.-F., Hung, H.-H., Wu, C., Ma, X., Chen, X., Xue, Q.-K.: Direct observation of nodes and twofold symmetry in FeSe superconductor. Science 332(6036), 1410–1413 (2011)

    Article  ADS  Google Scholar 

  39. Yildirim, T.: Origin of the 150-K anomaly in LaFeAsO: competing antiferromagnetic interactions, frustration, and a structural phase transition. Phys. Rev. Lett. 101(5), 057010 (2008)

    Article  ADS  Google Scholar 

  40. Si, Q., Abrahams, E.: Strong correlations and magnetic frustration in the high \({\rm T}_c\) iron pnictides. Phys. Rev. Lett. 101(7), 076401 (2008)

    Article  ADS  Google Scholar 

  41. Wu, J., Phillips, P., Neto, A.C.: Theory of the magnetic moment in iron pnictides. Phys. Rev. Lett. 101(12), 126401 (2008)

    Article  ADS  Google Scholar 

  42. Fang, C., Yao, H., Tsai, W.F., Hu, J., Kivelson, S.A.: Theory of electron nematic order in LaFeAsO. Phys. Rev. B 77(22), 224509 (2008)

    Article  ADS  Google Scholar 

  43. Xu, C., Müller, M., Sachdev, S.: Ising and spin orders in the iron-based superconductors. Phys. Rev. B 78(2), 020501(R) (2008)

    Article  ADS  Google Scholar 

  44. Saito, T., Onari, S., Kontani, H.: Emergence of fully gapped s\(_{++}\)-wave and nodal d-wave states mediated by orbital and spin fluctuations in a ten-orbital model of KFe\(_2\)Se\(_2\). Phys. Rev. B 83(14), 140512 (2011)

    Article  ADS  Google Scholar 

  45. Lv, W., Lee, W.C., Phillips, P.: Vacancy-driven orbital and magnetic order in (K, Tl, Cs)\(_y\)Fe\(_{2-x}\)Se\(_2\). Phys. Rev. B 84(15), 155107 (2011)

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Institute of Physics, Chinese Academy of Sciences, Beijing, China

    Junfeng He

Authors
  1. Junfeng He
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Junfeng He .

Rights and permissions

Reprints and permissions

Copyright information

© 2016 Springer-Verlag Berlin Heidelberg

About this chapter

Cite this chapter

He, J. (2016). Electronic Structures of the Superconducting Single-Layer FeSe/SrTiO\(_3\) Films. In: Angle-Resolved Photoemission Spectroscopy on High-Temperature Superconductors. Springer Theses. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-52732-0_6

Download citation

  • DOI: https://doi.org/10.1007/978-3-662-52732-0_6

  • Published:

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-662-52730-6

  • Online ISBN: 978-3-662-52732-0

  • eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)

Publish with us

Policies and ethics

Search

Navigation