Weak antilocalization and electron-electron interaction in coupled multiple-channel transport in a Bi2Se3 thin film.
(2016) In Nanoscale 8(4). p.1879-1885- Abstract
- The electron transport properties of a topological insulator Bi2Se3 thin film are studied in Hall-bar geometry. The film with a thickness of 10 nm is grown by van der Waals epitaxy on fluorophlogopite mica and Hall-bar devices are fabricated from the as-grown film directly on the mica substrate. Weak antilocalization and electron-electron interaction effects are observed and analyzed at low temperatures. The phase-coherence length extracted from the measured weak antilocalization characteristics shows a strong power-law increase with decreasing temperature and the transport in the film is shown to occur via coupled multiple (topological surface and bulk states) channels. The conductivity of the film shows a logarithmical decrease with... (More)
- The electron transport properties of a topological insulator Bi2Se3 thin film are studied in Hall-bar geometry. The film with a thickness of 10 nm is grown by van der Waals epitaxy on fluorophlogopite mica and Hall-bar devices are fabricated from the as-grown film directly on the mica substrate. Weak antilocalization and electron-electron interaction effects are observed and analyzed at low temperatures. The phase-coherence length extracted from the measured weak antilocalization characteristics shows a strong power-law increase with decreasing temperature and the transport in the film is shown to occur via coupled multiple (topological surface and bulk states) channels. The conductivity of the film shows a logarithmical decrease with decreasing temperature and thus the electron-electron interaction plays a dominant role in quantum corrections to the conductivity of the film at low temperatures. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8592988
- author
- Jing, Yumei ; Huang, Shaoyun ; Zhang, Kai ; Wu, Jinxiong ; Guo, Yunfan ; Peng, Hailin ; Liu, Zhongfan and Xu, Hongqi LU
- organization
- publishing date
- 2016
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nanoscale
- volume
- 8
- issue
- 4
- pages
- 1879 - 1885
- publisher
- Royal Society of Chemistry
- external identifiers
-
- pmid:26733366
- wos:000368860900012
- scopus:84955449075
- pmid:26733366
- ISSN
- 2040-3372
- DOI
- 10.1039/c5nr07296d
- language
- English
- LU publication?
- yes
- id
- 850f504a-5cf1-40cd-8c99-8221c47ca9f6 (old id 8592988)
- date added to LUP
- 2016-04-01 10:12:05
- date last changed
- 2023-11-09 14:38:06
@article{850f504a-5cf1-40cd-8c99-8221c47ca9f6,
abstract = {{The electron transport properties of a topological insulator Bi2Se3 thin film are studied in Hall-bar geometry. The film with a thickness of 10 nm is grown by van der Waals epitaxy on fluorophlogopite mica and Hall-bar devices are fabricated from the as-grown film directly on the mica substrate. Weak antilocalization and electron-electron interaction effects are observed and analyzed at low temperatures. The phase-coherence length extracted from the measured weak antilocalization characteristics shows a strong power-law increase with decreasing temperature and the transport in the film is shown to occur via coupled multiple (topological surface and bulk states) channels. The conductivity of the film shows a logarithmical decrease with decreasing temperature and thus the electron-electron interaction plays a dominant role in quantum corrections to the conductivity of the film at low temperatures.}},
author = {{Jing, Yumei and Huang, Shaoyun and Zhang, Kai and Wu, Jinxiong and Guo, Yunfan and Peng, Hailin and Liu, Zhongfan and Xu, Hongqi}},
issn = {{2040-3372}},
language = {{eng}},
number = {{4}},
pages = {{1879--1885}},
publisher = {{Royal Society of Chemistry}},
series = {{Nanoscale}},
title = {{Weak antilocalization and electron-electron interaction in coupled multiple-channel transport in a Bi2Se3 thin film.}},
url = {{http://dx.doi.org/10.1039/c5nr07296d}},
doi = {{10.1039/c5nr07296d}},
volume = {{8}},
year = {{2016}},
}