This title appears in the Scientific Report :
2013
Please use the identifier:
http://hdl.handle.net/2128/5510 in citations.
Please use the identifier: http://dx.doi.org/10.1103/PhysRevB.88.195401 in citations.
Screening and collective modes in disordered graphene antidot lattices
Screening and collective modes in disordered graphene antidot lattices
The excitation spectrum and the collective modes of graphene antidot lattices (GALs) are studied in the context of a π-band tight-binding model. The dynamical polarizability and dielectric function are calculated within the random-phase approximation. The effect of different kinds of disorder, such...
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Personal Name(s): | Yuan, Shengjun (Corresponding author) |
---|---|
Jin, Fengping / Roldán, Rafael / Jauho, Antti-Pekka / Katsnelson, M. I. | |
Contributing Institute: |
Jülich Supercomputing Center; JSC |
Published in: | Physical Review B Physical review / B, 88 88 (2013 2013) 19 19, S. 195401 195401 |
Imprint: |
College Park, Md.
APS
2013
|
DOI: |
10.1103/PhysRevB.88.195401 |
Document Type: |
Journal Article |
Research Program: |
Computational Science and Mathematical Methods |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1103/PhysRevB.88.195401 in citations.
The excitation spectrum and the collective modes of graphene antidot lattices (GALs) are studied in the context of a π-band tight-binding model. The dynamical polarizability and dielectric function are calculated within the random-phase approximation. The effect of different kinds of disorder, such as geometric and chemical disorder, are included in our calculations. We highlight the main differences of GALs with respect to single-layer graphene (SLG). Our results show that, in addition to the well-understood bulk plasmon in doped samples, interband plasmons appear in GALs. We further show that the static screening properties of undoped and doped GALs quantitatively differ from SLG. |