Electronic stopping power in LiF from first principles

Pruneda, J. M. and Sanchez-Portal, D. and Arnau, A. and Juaristi, J. I. and Artacho, E. (2007) Electronic stopping power in LiF from first principles. Physical Review Letters, 99 (23). pp. 235501-4. DOI https://doi.org/10.1103/PhysRevLett.99.235501

[img] PDF
Restricted to Registered users only

Download (334kB)
Official URL: doi:10.1103/PhysRevLett.99.235501


Using time-dependent density-functional theory we calculate from first principles the rate of energy transfer from a moving proton or antiproton to the electrons of an insulating material, LiF. The behavior of the electronic stopping power versus projectile velocity displays an effective threshold velocity of 0:2 a:u: for the proton, consistent with recent experimental observations, and also for the antiproton. The calculated proton/antiproton stopping-power ratio is 2:4 at velocities slightly above the threshold (v 0:4 a:u:), as compared to the experimental value of 2.1. The projectile energy loss mechanism is observed to be extremely local.

Item Type: Article
Uncontrolled Keywords: 2007 AREP IA55 2007 P
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
Journal or Publication Title: Physical Review Letters
Volume: 99
Page Range: pp. 235501-4
Identification Number: https://doi.org/10.1103/PhysRevLett.99.235501
Depositing User: Sarah Humbert
Date Deposited: 16 Feb 2009 13:03
Last Modified: 23 Jul 2013 10:08
URI: http://eprints.esc.cam.ac.uk/id/eprint/612

Actions (login required)

View Item View Item

About cookies