EXCITATIONS IN A SPHERICAL 2-DIMENSIONAL ELECTRON-GAS - APPLICATION TO THE C-60 MOLECULE

Authors
Citation
P. Longe et Sm. Bose, EXCITATIONS IN A SPHERICAL 2-DIMENSIONAL ELECTRON-GAS - APPLICATION TO THE C-60 MOLECULE, Solid state communications, 97(10), 1996, pp. 857-861
Citations number
6
Categorie Soggetti
Physics, Condensed Matter
Journal title
ISSN journal
00381098
Volume
97
Issue
10
Year of publication
1996
Pages
857 - 861
Database
ISI
SICI code
0038-1098(1996)97:10<857:EIAS2E>2.0.ZU;2-X
Abstract
The dielectric function of a spherical two-dimensional electron gas (2 DEG) is calculated in the framework of the random phase approximation. The whole spectrum of electron-hole and plasmon excitations is then c alculated numerically, along with the electron energy loss function. T he dispersion and strength of the plasmon mode as functions of the ang ular momenta are also obtained. The results are compared with those of a planar 2DEG with the same areal density.