Year: 2010
Type: article
Abstract: Recent theoretical studies of amorphous silicon (a‐Si) [Pan et al., Phys. Rev. Lett. 100, 206403 (2008)] have revealed subtle but significant structural correlations in network topology: the tendency for short (long) bonds to be spatially correlated with other short (long) bonds). These structures were linked to the electronic band tails in the optical gap. In this paper, we further examine these issues for a‐Si, and demonstrate that analogous correlations exist in amorphous SiO2, and in the organic molecule, β‐carotene. We conclude with a discussion of the origin of the effects and its possible generality.
Source: physica status solidi (a)
Authors: F. Inam, James P. Lewis, D. A. Drabold
Institutions: Ohio University, West Virginia University, University of Cambridge
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
Funder: National Science Foundation
OpenAlex ID: W2162363434