Imperial College London


Faculty of EngineeringDepartment of Materials

Professor of Theory and Simulation of Materials



+44 (0)20 7594 8154a.mostofi Website




Bessemer B332Royal School of MinesSouth Kensington Campus






BibTex format

author = {Wong, D and Corsetti, F and Wang, Y and Brar, VW and Tsai, H-Z and Wu, Q and Kawakami, RK and Zettl, A and Mostofi, AA and Lischner, J and Crommie, MF},
doi = {10.1103/PhysRevB.95.205419},
journal = {Physical Review B},
title = {Spatially resolving density-dependent screening around a single charged atom in graphene},
url = {},
volume = {95},
year = {2017}

RIS format (EndNote, RefMan)

AB - Electrons in two-dimensional graphene sheets behave as interacting chiral Dirac fermions and have unique screening properties due to their symmetry and reduced dimensionality. By using a combination of scanning tunneling spectroscopy measurements and theoretical modeling we have characterized how graphene's massless charge carriers screen individual charged calcium atoms. A backgated graphene device configuration has allowed us to directly visualize how the screening length for this system can be tuned with carrier density. Our results provide insight into electron-impurity and electron-electron interactions in a relativistic setting with important consequences for other graphene-based electronic devices.
AU - Wong,D
AU - Corsetti,F
AU - Wang,Y
AU - Brar,VW
AU - Tsai,H-Z
AU - Wu,Q
AU - Kawakami,RK
AU - Zettl,A
AU - Mostofi,AA
AU - Lischner,J
AU - Crommie,MF
DO - 10.1103/PhysRevB.95.205419
PY - 2017///
SN - 2469-9950
TI - Spatially resolving density-dependent screening around a single charged atom in graphene
T2 - Physical Review B
UR -
UR -
VL - 95
ER -