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Size dependence of electron-photon coupling in ZnO nanowires

Wang, Rongping; Xu, G; Jin, P

Description

Raman spectra of ZnO powder and free-standing nanowires prepared by laser ablation have been studied. All observed vibrational modes in ZnO powder, both first order and higher order scattering, were assigned on the basis of group theoretical analysis. The size dependence of the coupling strength between electron and longitudinal optical (LO) phonon was experimentally estimated. It was found that the coupling strength determined by the ratio of second- to first-order Raman scattering cross...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
URI: http://hdl.handle.net/1885/30539
Source: Physical Review B: Condensed Matter and Materials

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