|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'506'133
Articles rated: 2609
26 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Observation of Anderson localization in ultrathin films of three-dimensional topological insulators | | Jian Liao
; Yunbo Ou
; Xiao Feng
; Shuo Yang
; Chaojing Lin
; Wenmin Yang
; Kehui Wu
; Ke He
; Xucun Ma
; Qi-Kun Xue
; Yongqing Li
; | | Date: |
8 Apr 2015 | | Abstract: | Anderson localization, the absence of diffusive transport in disordered
systems, has been manifested as hopping transport in numerous electronic
systems, whereas in recently discovered topological insulators it has not been
directly observed. Here we report experimental demonstration of transition from
diffusive transport in the weak antilocalization regime to variable range
hopping transport in the Anderson localization regime with ultrathin
(Bi$_{1-x}$Sb$_x$)$_2$Te$_3$ films. As disorder becomes stronger, negative
magnetoconductivity due to the weak antilocalization is gradually suppressed,
and eventually positive magnetoconductivity emerges when the electron system
becomes strongly localized. This works reveals the critical role of disorder in
the quantum transport properties of ultrathin topological insulator films, in
which theories have predicted rich physics related to topological phase
transitions. | | Source: | arXiv, 1504.1847 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER