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Molecular-beam epitaxy and robust superconductivity of stoichiometric FeSe crystalline films on bilayer graphene

Journal Article


Abstract


  • We report on molecular beam epitaxy growth of stoichiometric and superconducting FeSe crystalline thin films

    on double-layer graphene. Layer-by-layer growth of high-quality films has been achieved in a well-controlled

    manner by using Se-rich condition, which allow us to investigate the thickness-dependent superconductivity

    of FeSe. In situ low-temperature scanning tunneling spectra reveal that the local superconducting gap in the

    quasiparticle density of states is visible down to two triple layers for the minimum measurement temperature of

    2.2 K, and that the transition temperature Tc scales inversely with film thickness.

UOW Authors


  •   Song, Canli (external author)
  •   Wang, Yi-Lin (external author)
  •   Jiang, Yeping (external author)
  •   Li, Zhi
  •   Wang, Lili (external author)
  •   He, Ke (external author)
  •   Chen, Xi (external author)
  •   Ma, Xu-Cun (external author)
  •   Xue, Qi-Kun (external author)

Publication Date


  • 2011

Geographic Focus


Citation


  • Song, C., Wang, Y., Jiang, Y., Li, Z., Wang, L., He, K., Chen, X., Ma, X. & Xue, Q. (2011). Molecular-beam epitaxy and robust superconductivity of stoichiometric FeSe crystalline films on bilayer graphene. Physical Review B: Condensed Matter and Materials Physics, 84 020503-1-020503-4.

Scopus Eid


  • 2-s2.0-79961204622

Start Page


  • 020503-1

End Page


  • 020503-4

Volume


  • 84

Place Of Publication


  • United States

Abstract


  • We report on molecular beam epitaxy growth of stoichiometric and superconducting FeSe crystalline thin films

    on double-layer graphene. Layer-by-layer growth of high-quality films has been achieved in a well-controlled

    manner by using Se-rich condition, which allow us to investigate the thickness-dependent superconductivity

    of FeSe. In situ low-temperature scanning tunneling spectra reveal that the local superconducting gap in the

    quasiparticle density of states is visible down to two triple layers for the minimum measurement temperature of

    2.2 K, and that the transition temperature Tc scales inversely with film thickness.

UOW Authors


  •   Song, Canli (external author)
  •   Wang, Yi-Lin (external author)
  •   Jiang, Yeping (external author)
  •   Li, Zhi
  •   Wang, Lili (external author)
  •   He, Ke (external author)
  •   Chen, Xi (external author)
  •   Ma, Xu-Cun (external author)
  •   Xue, Qi-Kun (external author)

Publication Date


  • 2011

Geographic Focus


Citation


  • Song, C., Wang, Y., Jiang, Y., Li, Z., Wang, L., He, K., Chen, X., Ma, X. & Xue, Q. (2011). Molecular-beam epitaxy and robust superconductivity of stoichiometric FeSe crystalline films on bilayer graphene. Physical Review B: Condensed Matter and Materials Physics, 84 020503-1-020503-4.

Scopus Eid


  • 2-s2.0-79961204622

Start Page


  • 020503-1

End Page


  • 020503-4

Volume


  • 84

Place Of Publication


  • United States