Evaluation of Born and local effective charges in unoriented materials from vibrational spectra
Year: 2009
Type: article
Abstract: We present an application of the Lorentz model in which fits to vibrational spectra or a Kramers Kronig analysis are employed along with several useful formalisms to quantify microscopic charge in unoriented (powdered) materials. The conditions under which these techniques can be employed are discussed, and we analyze the vibrational response of a layered transition-metal dichalcogenide and its nanoscale analog to illustrate the utility of this approach.
Source: Physical Review B
Authors: X. S. Xu, Q.-C. Sun, R. Rosentsveig, J. L. Musfeldt
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
Funder: Oak Ridge National Laboratory
OpenAlex ID: W2082313918
