Quintuple-layer epitaxy of thin films of topological insulator Bi 2 Se3

Guanhua Zhang, Huajun Qin, Jing Teng, Jiandong Guo, Qinlin Guo, Xi Dai, Zhong Fang, Kehui Wu*

*Corresponding author for this work

Research output: Contribution to journalJournal Articlepeer-review

341 Citations (Scopus)

Abstract

Atomically smooth, single crystalline Bi2 Se3 thin films were prepared on Si(111) by molecular beam epitaxy. Scanning tunneling microscopy, low-energy electron diffraction, x-ray photoelectron emission spectroscopy, and Raman spectroscopy were used to characterize the stoichiometry and crystallinity of the film. The films grow in a self-organized quintuple layer by quintuple-layer mode, and atomically smooth films can be obtained, with controllable thickness down to one quintuple layer (∼1 nm).

Original languageEnglish
Article number053114
JournalApplied Physics Letters
Volume95
Issue number5
DOIs
Publication statusPublished - 2009
Externally publishedYes

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