List of records in nano database
IDs:
416
Authors : |
Tapasztó,L.;Dobrik,G.;Nemes-Incze,P.;Vértesy,G.;Lambin,Ph.;Bíró,L.,P. |
Title : |
Tuning the electronic structure of graphene by ion irradiation |
JournalName : |
Physical Review B |
PubDateYear : |
2008 |
PubDateOther : |
|
Volume : |
78 |
Issue : |
|
StartPage : |
233407-1 |
EndPage : |
233407-4 |
Keywords : |
TOP_Graphene;W_Experiment;W_STM |
Notes : |
|
Abstract : |
Mechanically exfoliated graphene layers deposited on SiO2 substrate were irradiated with Ar+ ions in order
to experimentally study the effect of atomic scale defects and disorder on the low-energy electronic structure
of graphene. The irradiated samples were investigated by scanning tunneling microscopy and spectroscopy
measurements, which reveal that defect sites, besides acting as scattering centers for electrons through local
modification of the on-site potential, also induce disorder in the hopping amplitudes. The most important
consequence of the induced disorder is the substantial reduction in the Fermi velocity, revealed by biasdependent
imaging of electron-density oscillations observed near defect sites. |
HTML_Local : |
|
HTML_Remote : |
|
Preprint_Local : |
http://www.nanotechnology.hu/reprint/prb_78_233407_IrradGraphene.pdf |
Preprint_Remote : |
|
Warning: all transactions are logged!