Large bulk resistivity and surface quantum oscillations in the topological insulator Bi 2 Te 2 Se
By Z. Ren, A. Taskin, S. Sasaki, K. Segawa, Y. Ando. 2010
568 citations recorded by the source corpus.
Topological insulators are predicted to present interesting surface transport phenomena but their experimental studies have been hindered by a metallic bulk conduction that overwhelms the surface transport. We show that the topological insulator ${\text{Bi}}_{2}{\text{Te}}_{2}\text{Se}$ presents a high resistivity exceeding $1\text{ }\ensuremath{\Omega}\text{ }\text{cm}$ and a variable-range hopping behavior, and yet presents Shubnikov-de Haas oscillations coming from the topological surface state. Furthermore, we have been able to clarify both the bulk and surface transport channels, establishing a comprehensive understanding of the transport in this material. Our results demonstrate that ${\text{Bi}}_{2}{\text{Te}}_{2}\text{Se}$ is, to our knowledge, the best material to date for studying the surface quantum transport in a topological insulator.
Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/0f873c01d971108cc9d6c12d281b77e8805f4aeb
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In Atomic and Molecular Physics, and Optics
In Materials Chemistry
Citations in the corpus
- Colloquium : Topological band theory (2016, background): “Many of these compounds have been synthesized and ARPES (Xu et al. 2010; Neupane et al. 2012; Zhang, Chang, Zhang, et al. 2011; Eremeev, Landolt, et al. 2012; Okamoto et al. 2012) and transport measurements (Xiong et al. 2012; Taskin et al. 2011; Ren et al. 2010) are available.”