papers
Publications (2)
cond-mat.mes-hall2017
Charge puddles in the bulk and on the surface of the topological insulator BiSbTeSe$_2$ studied by scanning tunneling microscopy and optical spectroscopy
T. Knispel, W. Jolie, N. Borgwardt +6
cond-mat.mes-hall2015
Revealing puddles of electrons and holes in compensated topological insulators
N. Borgwardt, J. Lux, I. Vergara +7