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Delocalized surface state in epitaxial Si(111) film with spontaneous √3 × √3 superstructure

Journal Article


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Abstract


  • The " multilayer silicene" films were grown on Ag(111), with increasing thickness above 30 monolayers (ML). Scanning tunneling microscopy (STM) observations suggest that the " multilayer silicene" is indeed a bulk-like Si(111) film with a (√ 3 × √ 3)R30° honeycomb superstructure on surface. The possibility for formation of Si(111)(√ 3 × √ 3)R30°-Ag reconstruction on the surface can be distinctively ruled out by peeling off the surface layer with the STM tip. On this surface, delocalized surface state as well as linear energy-momentum dispersion was observed from quasiparticle interference patterns. Our results indicate that a bulklike silicon film with diamondlike structure can also host delocalized surface state, which is even more attractive for potential applications, such as new generation of nanodevices based on Si.

Authors


  •   Chen, Jian (external author)
  •   Du, Yi
  •   Li, Zhi
  •   Li, Wenbin (external author)
  •   Feng, Baojie (external author)
  •   Qiu, Jinlan (external author)
  •   Cheng, Peng (external author)
  •   Dou, Shi Xue
  •   Chen, Lan (external author)
  •   Wu, Ke-Hui (external author)

Publication Date


  • 2015

Citation


  • Chen, J., Du, Y., Li, Z., Li, W., Feng, B., Qiu, J., Cheng, P., Dou, S. Xue., Chen, L. & Wu, K. (2015). Delocalized surface state in epitaxial Si(111) film with spontaneous √3 × √3 superstructure. Scientific Reports, 5 13590-1-13590-8.

Scopus Eid


  • 2-s2.0-84940481173

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2588&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1586

Has Global Citation Frequency


Start Page


  • 13590-1

End Page


  • 13590-8

Volume


  • 5

Place Of Publication


  • United Kingdom

Abstract


  • The " multilayer silicene" films were grown on Ag(111), with increasing thickness above 30 monolayers (ML). Scanning tunneling microscopy (STM) observations suggest that the " multilayer silicene" is indeed a bulk-like Si(111) film with a (√ 3 × √ 3)R30° honeycomb superstructure on surface. The possibility for formation of Si(111)(√ 3 × √ 3)R30°-Ag reconstruction on the surface can be distinctively ruled out by peeling off the surface layer with the STM tip. On this surface, delocalized surface state as well as linear energy-momentum dispersion was observed from quasiparticle interference patterns. Our results indicate that a bulklike silicon film with diamondlike structure can also host delocalized surface state, which is even more attractive for potential applications, such as new generation of nanodevices based on Si.

Authors


  •   Chen, Jian (external author)
  •   Du, Yi
  •   Li, Zhi
  •   Li, Wenbin (external author)
  •   Feng, Baojie (external author)
  •   Qiu, Jinlan (external author)
  •   Cheng, Peng (external author)
  •   Dou, Shi Xue
  •   Chen, Lan (external author)
  •   Wu, Ke-Hui (external author)

Publication Date


  • 2015

Citation


  • Chen, J., Du, Y., Li, Z., Li, W., Feng, B., Qiu, J., Cheng, P., Dou, S. Xue., Chen, L. & Wu, K. (2015). Delocalized surface state in epitaxial Si(111) film with spontaneous √3 × √3 superstructure. Scientific Reports, 5 13590-1-13590-8.

Scopus Eid


  • 2-s2.0-84940481173

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2588&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1586

Has Global Citation Frequency


Start Page


  • 13590-1

End Page


  • 13590-8

Volume


  • 5

Place Of Publication


  • United Kingdom