Metal-supported high crystalline Bi 2Se 3 quintuple layers

Jeong Heum Jeon, Won Jun Jang, Jong Keon Yoon, Se-Jong Kahng

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Atomically flat thin films of Bi 2Se 3 were grown on Au(111) metal substrate using molecular beam epitaxy. Hexagonal atomic structures and quintuple layer steps were observed at the surfaces of grown films using scanning tunneling microscopy. Multiple sharp peaks from (003) family layers were characterized by x-ray diffraction measurements. The atomic stoichiometry of Bi and Se was considered using x-ray photoemission spectroscopy. Moiré patterns were obtained at the surfaces of one quintuple layer films due to lattice mismatch between Bi 2Se 3 and Au. Our experiments suggest that Au is a reasonable material for electrodes in Bi 2Se 3 devices.

Original languageEnglish
Article number465602
JournalNanotechnology
Volume22
Issue number46
DOIs
Publication statusPublished - 2011 Nov 18

Fingerprint

Scanning Tunnelling Microscopy
Metals
X-Rays
Crystalline materials
X rays
Photoelectron Spectroscopy
Lattice mismatch
Scanning tunneling microscopy
Photoelectron spectroscopy
Molecular beam epitaxy
Stoichiometry
Electrodes
Diffraction
Thin films
Equipment and Supplies
Substrates
Experiments

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

Metal-supported high crystalline Bi 2Se 3 quintuple layers. / Jeon, Jeong Heum; Jang, Won Jun; Yoon, Jong Keon; Kahng, Se-Jong.

In: Nanotechnology, Vol. 22, No. 46, 465602, 18.11.2011.

Research output: Contribution to journalArticle

Jeon, Jeong Heum ; Jang, Won Jun ; Yoon, Jong Keon ; Kahng, Se-Jong. / Metal-supported high crystalline Bi 2Se 3 quintuple layers. In: Nanotechnology. 2011 ; Vol. 22, No. 46.
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