Abstract

The electrical resistivity of thin films of a topological insulator of Bi2Se3 with a thickness of 10 nm to 75 nm, single crystal of Bi2Se3 with thickness of 0.65 mm in the temperature range from 4.2 to 300 K was measured. A size effect in the electrical conductivity of Bi2Se3 films was observed, i.e. linear dependence of the conductivity of the sample on its inverse thickness. It was suggested that similar effects should be observed in other TIs and systems with non-uniform distribution of direct current over the cross section of the sample.

Details

Title
Thickness dependence of conductivity in Bi2Se3 topological insulator
Author
Chistyakov, V V 1 ; Domozhirova, A N 1 ; Huang, J C A 2 ; Marchenkov, V V 3 

 M.N. Mikheev Institute of Metal Physics UB RAS, Ekaterinburg 620108, Russia 
 National Cheng Kung University, Tainan 70101, Taiwan 
 M.N. Mikheev Institute of Metal Physics UB RAS, Ekaterinburg 620108, Russia; Ural Federal University, Ekaterinburg 620002, Russia 
Publication year
2019
Publication date
Nov 2019
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2568367431
Copyright
© 2019. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.