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 |
Setname |
ir_uspace |
ID |
708035 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s60p1hs9 |