Department of Physics and Chemistry
Nanospm Lab(Advanced Materials Research Group)
1. Journal Articles
Growth of niobium on the three-dimensional topological insulator Bi2Te1.95Se1.05
- Title
- Growth of niobium on the three-dimensional topological insulator Bi2Te1.95Se1.05
- Author(s)
- Meixner, P[Meixner, Philipp] ; Lim, SJ[Lim, Seong Joon] ; Park, J[Park, Joonbum] ; Kim, JS[Kim, Jun Sung] ; Fischer, SF[Fischer, Saskia F.] ; Seo, J[Seo, Jungpil] ; Kuk, Y[Kuk, Young]
- DGIST Authors
- Seo, J[Seo, Jungpil]
- Issued Date
- 2016-01-15
- Type
- Article
- Article Type
- Article
- Subject
- Annealing Temperatures ; Bi2Te2Se ; Deposition ; Electric Insulators ; High Energy Electron Beams ; Layer-by-Layer Growth ; Monolayers ; N-Type Doping ; Niobium ; Scanning Tunneling Microscopy ; Scanning Tunneling Microscopy and Spectroscopy ; Sub-Monolayers ; Three-Dimensional (3-D) ; Topological Insulators ; Transition-Metalss
- ISSN
- 0169-4332
- Abstract
- While applying a new cleaving method, we investigated the growth of Nb on the three-dimensional (3D) topological insulator (TI) Bi2Te1.95Se1.05 by scanning tunneling microscopy and spectroscopy. After the deposition of nearly a full monolayer of Nb by high-energy electron-beam evaporation, we observed a downshift of the bands and the Dirac point on the TI surface, which is the result of an n-type doping of the TI by transition metal adatoms. Extra peaks in the spectroscopy results upon Nb deposition might indicate a Rashba-split of the bulk bands. Nb grew in small 10 nm wide islands upon sub-monolayer growth and in a layer-by-layer growth mode up to an annealing temperature of 450 °C. © 2015 Elsevier B.V. All rights reserved.
- Publisher
- Elsevier B.V.
- Related Researcher
-
-
Seo, Sangwon 화학물리학과
- Research Interests Topological Matters; High Tc Superconductors; Low dimensional Quantum Matters
-
- Files in This Item:
-
There are no files associated with this item.
- Appears in Collections:
- Department of Physics and Chemistry Nanospm Lab(Advanced Materials Research Group) 1. Journal Articles
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.