Topological and electronic transitions in a Sb(111) nanofilm: the interplay between quantum confinement and surface effect

Update Item Information
Publication Type Journal Article
School or College College of Engineering
Department Materials Science & Engineering
Creator Liu, Feng
Other Author Zhang, PengFei; Liu, Zheng; Duan, Wenhui; Wu, Jian
Title Topological and electronic transitions in a Sb(111) nanofilm: the interplay between quantum confinement and surface effect
Date 2012-01-01
Description When the dimension of a solid structure is reduced, there will be two emerging effects, quantum confinement and surface effect, which dominate at nanoscale. Based on first-principles calculations, we demonstrate that due to an intriguing interplay between these two dominating effects, the topological and electronic (topoelectronic) properties of Sb (111) nanofilms undergo a series of transitions as a function of the reducing film thickness: transforming from a topological semimetal to a topological insulator at 7.8 nm (22 bilayer), then to a quantum spin Hall (QSH) phase at 2.7 nm (8 bilayer), and finally, to a normal (topological trivial) semiconductor at 1.0 nm (3 bilayer). Our theoretical findings identify the existence of the QSH in the Sb (111) nanofilms within a narrow range of thickness and suggest that the Sb (111) nanofilms provide an ideal test bed for experimental study of topoelectronic phase transitions.
Type Text
Publisher American Physical Society
Volume 85
Issue 20
First Page 201410-1
Last Page 201410-4
DOI http://dx.doi.org/10.1103/PhysRevB.85.201410.
Dissertation Institution University of Utah
Language eng
Bibliographic Citation Zhang, P., Liu, Z., Duan, W., Liu, F., & Wu, J. (2012). Topological and electronic transitions in a Sb(111) nanofilm: the interplay between quantum confinement and surface effect. Physical Review B - Condensed Matter and Materials Physics, 85(20), 201410-1-201410-4.
Rights Management (c) American Physical Society
Format Medium application/pdf
Format Extent 697-269 bytes
Identifier uspace,17543
ARK ark:/87278/s60p1hs9
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ID 708035
Reference URL https://collections.lib.utah.edu/ark:/87278/s60p1hs9