119 citations · 400 across the 8 of their papers we have counts for
3 papers · 1 filter
Charge puddles in the bulk and on the surface of the topological insulator BiSbTeSe studied by scanning tunneling microscopy and optical spectroscopy
T. Knispel, W. Jolie, N. Borgwardt +6
The topological insulator BiSbTeSe corresponds to a compensated semiconductor in which strong Coulomb disorder gives rise to the formation of charge puddles, i.e., local accumu…
Gigantic negative magnetoresistance in a disordered topological insulator
Oliver Breunig, Zhiwei Wang, A. A. Taskin +3
With the recent discovery of Weyl semimetals, the phenomenon of negative magnetoresistance (MR) is attracting renewed interest. While small negative MR can occur due to the suppres…
Length scale of puddle formation in compensation-doped semiconductors and topological insulators
Thomas Bömerich, Jonathan Lux, Qingyufei Terenz Feng +1
In most semiconductors and insulators the presence of a small density of charged impurities cannot be avoided, but their effect can be reduced by compensation doping, i.e. by intro…