Optical response of small carbon clusters
K. Yabana, G. F. Bertsch
Abstract
We apply the time-dependent local density approximation (TDLDA) to calculate dipole excitations in small carbon clusters. A strong low-frequency mode is found which agrees well with observation for clusters Cn with n in the range 7-15. The size dependence of the mode may be understood simply as the classical resonance of electrons in a conducting needle. For a ring geometry, the lowest collective mode occurs at about twice the frequency of the collective mode in the linear chain, and this may also be understood in simple terms.
Create a lesson
Related papers
Real-Time Emergence of Charge-Transfer-to-Solvent States from Core Excitation
Jiří Suchan, B. Scott Fales, Benjamin G. Levine et al.
ElemCo.jl: A Julia package for electron-correlation methods
Daniel Kats, Charlotte Rickert, Thomas Schraivogel et al.
Franson-Interferometric Bounds on Entangled Two-Photon Absorption
Albin Hedse, Sankaran Ramesh, Luis Matheis et al.
The off-diagonal low rank property: new opportunities for low-scaling computational chemistry methods
Zikuan Wang
Core-valence double ionization of SF6 involving S2p, F1s and S1s inner shells
Veronica Daver Ideböhn, Daniel M. Pereira, Lucas M. Cornetta et al.
Benchmark of Multi-Channel Dyson Equation and Algebraic Diagrammatic Construction Methods for molecules
Mike Keizer, Stefano Paggi, J. Arjan Berger et al.