Journal
PHYSICAL REVIEW LETTERS
Volume 110, Issue 15, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.156101
Keywords
-
Categories
Funding
- National Science Foundation [CHE-1012987]
- DOE [DE-FG02-05ER46237, DE-FG02-07ER46351]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1012987] Funding Source: National Science Foundation
Ask authors/readers for more resources
It has been widely assumed that Se terminates the surface of the topological insulator, bismuth selenide. Although some Se is initially at the surface after cleaving at 80 K, low energy ion scattering reveals a complete Bi termination at room temperature. Density functional theory shows that a Bi bilayer atop the bulk-terminated structure is energetically favorable. It is thus proposed that a thermally activated process induces a spontaneous termination change after cleaving. This has profound implications on the electrical transport and long-term stability of such materials and devices. DOI: 10.1103/PhysRevLett.110.156101
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available