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- URN zum Zitieren dieses Dokuments:
- urn:nbn:de:bvb:355-epub-322320
- DOI zum Zitieren dieses Dokuments:
- 10.5283/epub.32232
Zusammenfassung
We discuss the optical conductivity of several noninteracting two-dimensional semiconducting systems focusing on gapped Dirac and Schrödinger fermions as well as on a system mixing these two types. Close to the band gap, we can define a universal optical conductivity quantum of σ0=116e2ℏ for the pure systems. The effective optical conductivity then depends on the degeneracy factors gs (spin) and ...
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