TY - JOUR

T1 - Time-dependent density-functional theory for the stopping power of an interacting electron gas for slow ions

AU - Nazarov, V. U.

AU - Pitarke, J. M.

AU - Kim, C. S.

AU - Takada, Y.

PY - 2005/3/15

Y1 - 2005/3/15

N2 - Based on the time-dependent density-functional theory, we have derived a rigorous formula for the stopping power of an interacting electron gas for ions in the limit of low projectile velocities. If dynamical correlation between electrons is not taken into account, this formula recovers the corresponding stopping power of non-interacting electrons in an effective Kohn-Sham potential. The correlation effect, specifically the excitonic one in electron-hole pair excitations, however, is found to considerably enhance the stopping power for intermediately charged ions, bringing our theory into good agreement with experiment.

AB - Based on the time-dependent density-functional theory, we have derived a rigorous formula for the stopping power of an interacting electron gas for ions in the limit of low projectile velocities. If dynamical correlation between electrons is not taken into account, this formula recovers the corresponding stopping power of non-interacting electrons in an effective Kohn-Sham potential. The correlation effect, specifically the excitonic one in electron-hole pair excitations, however, is found to considerably enhance the stopping power for intermediately charged ions, bringing our theory into good agreement with experiment.

UR - http://www.scopus.com/inward/record.url?scp=20044385750&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.71.121106

DO - 10.1103/PhysRevB.71.121106

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:20044385750

SN - 1098-0121

VL - 71

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 12

M1 - 121106

ER -