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Molecular beam epitaxy growth and post-growth annealing of FeSe films on SrTiO3: a scanning tunneling microscopy study

Journal Article


Abstract


  • Low temperature scanning tunneling microscopy and spectroscopy are used to investigate the

    atomic and electronic structure evolution of FeSe films grown on SrTiO3 as a function of postgrowth

    annealing. Single unit cell FeSe films are found to bond strongly with the underlying

    substrate, and become superconductive with diminishing chemical bond disorders at the

    interface via post-annealing. For thicker FeSe films, post-annealing removes excess Se in

    the films and leads to a transition from semiconductor into metallic behaviors. In double and

    multilayer films, strain-induced complex textures are observed and suggested to be the main

    cause for the absent superconductivity.

UOW Authors


  •   Li, Zhi
  •   Peng, Jun (external author)
  •   Zhang, Huimin (external author)
  •   Zhang, Wenhao (external author)
  •   Ding, Hao (external author)
  •   Deng, Peng (external author)
  •   Chang, Kai (external author)
  •   Song, Canli (external author)
  •   Ji, Shuaihua (external author)
  •   Wang, Lili (external author)
  •   He, Ke (external author)
  •   Chen, Xi (external author)
  •   Xue, Qi-Kun (external author)
  •   Ma, Xu-Cun (external author)

Publication Date


  • 2014

Geographic Focus


Citation


  • Li, Z., Peng, J., Zhang, H., Zhang, W., Ding, H., Deng, P., Chang, K., Song, C., Ji, S., Wang, L., He, K., Chen, X., Xue, Q. & Ma, X. (2014). Molecular beam epitaxy growth and post-growth annealing of FeSe films on SrTiO3: a scanning tunneling microscopy study. Journal of Physics: Condensed Matter, 26 265002-1-265002-6.

Scopus Eid


  • 2-s2.0-84902272107

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2584

Start Page


  • 265002-1

End Page


  • 265002-6

Volume


  • 26

Place Of Publication


  • United Kingdom

Abstract


  • Low temperature scanning tunneling microscopy and spectroscopy are used to investigate the

    atomic and electronic structure evolution of FeSe films grown on SrTiO3 as a function of postgrowth

    annealing. Single unit cell FeSe films are found to bond strongly with the underlying

    substrate, and become superconductive with diminishing chemical bond disorders at the

    interface via post-annealing. For thicker FeSe films, post-annealing removes excess Se in

    the films and leads to a transition from semiconductor into metallic behaviors. In double and

    multilayer films, strain-induced complex textures are observed and suggested to be the main

    cause for the absent superconductivity.

UOW Authors


  •   Li, Zhi
  •   Peng, Jun (external author)
  •   Zhang, Huimin (external author)
  •   Zhang, Wenhao (external author)
  •   Ding, Hao (external author)
  •   Deng, Peng (external author)
  •   Chang, Kai (external author)
  •   Song, Canli (external author)
  •   Ji, Shuaihua (external author)
  •   Wang, Lili (external author)
  •   He, Ke (external author)
  •   Chen, Xi (external author)
  •   Xue, Qi-Kun (external author)
  •   Ma, Xu-Cun (external author)

Publication Date


  • 2014

Geographic Focus


Citation


  • Li, Z., Peng, J., Zhang, H., Zhang, W., Ding, H., Deng, P., Chang, K., Song, C., Ji, S., Wang, L., He, K., Chen, X., Xue, Q. & Ma, X. (2014). Molecular beam epitaxy growth and post-growth annealing of FeSe films on SrTiO3: a scanning tunneling microscopy study. Journal of Physics: Condensed Matter, 26 265002-1-265002-6.

Scopus Eid


  • 2-s2.0-84902272107

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2584

Start Page


  • 265002-1

End Page


  • 265002-6

Volume


  • 26

Place Of Publication


  • United Kingdom