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Density functional theory analysis of hexagonal close-packed elemental metal photocathodes

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journal contribution
posted on 05.11.2015, 00:00 authored by T. Li, BL Rickman, WA Schroeder
A density function theory based analysis of photoemission from hexagonal close packed (hcp) metals is presented and the calculated values of the rms transverse momentum (ΔpT) are in good agreement with the available experimental data on Be [Phys. Rev. Lett. 111, 237401 (2013)] and Mg [Proceedings of LINAC 2002, Gyeongju, Korea (2002)]. The lattice constants and work functions of the hcp metals are also examined and are consistent with the available experimental values. In addition, emission from (0001)-oriented Be is examined due to the presence of a strong surface state.

Funding

This work was partially supported by the Department of Energy (Contract No. DEFG52-09NA29451).

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Publisher Statement

This is the copy of an article published in Physical Review Special Topics: Accelerators and Beams © 2015 American Physical Society Publications.

Publisher

American Physical Society

issn

1098-4402

Issue date

01/07/2015

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