A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is
Enhanced surface mobility and quantum oscillations in topological insulator Bi1.5Sb0.5Te1.7Se1.3 nanoflakes
Applied Physics Letters
In this study, a series of Bi 1.5 Sb 0.5 Te 1.7 Se 1.3 (BSTS) flakes 80-nm to 140-lm in thickness was fabricated to investigate their metallic surface states. We report the observation of surface-dominated transport in these topological insulator BSTS nanoflakes. The achievement of surface-dominated transport can be attributed to high surface mobility ($3000 cm 2 /V s) and low bulk mobility (12 cm 2 /V s). Up to 90% of the total conductance, the surface channel was estimated based on thedoi:10.1063/1.4826092 fatcat:3rvpbx4rxzb2naexawx4epw47q