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PbTe(111) Sub-Thermionic Photocathode: A Route to High-Quality Electron Pulses · arXivDesk

1704.00194Apr 1, 2017DFT Calculations, PbTe(111), Photoemission, Photocathodes, Statistical Modeling, Band Structure, Fermi Surface

PbTe(111) Sub-Thermionic Photocathode: A Route to High-Quality Electron Pulses

Tuo Li, W. Andreas Schroeder

Accelerator Physics

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Abstract

The emission properties of PbTe(111) single crystal have been extensively investigated to demonstrate that PbTe(111) is a promising low root mean square transverse momentum (Δp $_T$ ) and high brightness photocathode. The density functional theory (DFT) based photoemission analysis successfully elucidates that the 'hole-like' Λ $^+_6$ energy band in the $L$

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The emission properties of PbTe(111) single crystal have been extensively investigated to demonstrate that PbTe(111) is a promising low root mean square transverse momentum (Δp_T) and high brightness photocathode. The density functional theory (DFT) based photoemission analysis successfully elucidates that the 'hole-like' Λ^+₆ energy band in the L valley with low effective mass m^* results in low Δp_T.

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The paper addresses: PbTe(111) Sub-Thermionic Photocathode: A Route to High-Quality Electron Pulses.
The emission properties of PbTe(111) single crystal have been extensively investigated to demonstrate that PbTe(111) is a promising low root mean square transverse momentum (Δp_T) and high brightness photocathode.

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Author comment: DFT Calculations, PbTe(111), Photoemission, Photocathodes, Statistical Modeling, Band Structure, Fermi Surface