| Literature DB >> 28736478 |
V K Tewary1, Rebecca C Quardokus1, Frank W DelRio1.
Abstract
A Green's function (GF) method is developed for interpreting scanning probe microscopy (SPM) measurements on new two-dimensional (2D) materials. GFs for the Laplace/Poisson equations are calculated by using a virtual source method for two separate cases of a finite material containing a rectangular defect and a hexagonal defect. The prescribed boundary values are reproduced almost exactly by the calculated GFs. It is suggested that the GF is not just a mathematical artefact but a basic physical characteristic of material systems, which can be measured directly by SPM for 2D solids. This should make SPM an even more powerful technique for characterization of 2D materials.Entities:
Keywords: Antidots; Graphene; Green’s function; Materials characterization; Scanning probe microscopy; Two-dimensional materials
Year: 2016 PMID： 28736478 PMCID： PMC5520644 DOI： 10.1016/j.physleta.2016.03.021
Source DB: PubMed Journal: Phys Lett A ISSN： 0375-9601 Impact factor: 2.654