Electronic and optical properties of group IV two-dimensional materials

✍ Scribed by Pulci, O. ;Gori, P. ;Marsili, M. ;Garbuio, V. ;Seitsonen, A. P. ;Bechstedt, F. ;Cricenti, A. ;Del Sole, R.

• Book ID: 105365688
• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 544 KB
• Volume: 207
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200982503

✦ Synopsis

Abstract

The microscopic study of complex systems has reached a high level of accuracy that allows for a deep understanding of their structure, electronic properties, and optical spectra. The theoretical investigation of surfaces is nowadays routinely done within density functional theory, for ground state properties, and, with a larger computational load, within many‐body perturbation theory, for excited states properties. In this paper we present and discuss examples of calculations for group IV two‐dimensional systems such as a clean silicon surface, a tin–germanium interface, graphene, and graphane, pointing out the importance of a pertinent treatment of many‐body effects.