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cond-mat.mtrl-sci2026
Evidence for Umklapp electron scattering emission from metal photocathodes
I-J. Shan, L. A. Angeloni, W. Andreas Schroeder
Comparison of the measured spectral emission properties of single-crystal Cu(001) and W(111) photocathodes to established photoemission theories reveal evidence for an additional o…
cond-mat.mtrl-sci2026
Intrinsic emittance properties of an Fe-doped Beta-Ga2O3(010) photocathode: Ultracold electron emission at 300K and the polaron self-energy
Louis A. Angeloni, Ir-Jene Shan, J. H. Leach +1
Measurements of the spectral emission properties of an iron-doped a beta-Ga2O3(010) photocathode at 300 K reveal the presence of an ultracold contribution to the total electron bea…
cond-mat.mtrl-sci2025
Franck-Condon electron emission from polar semiconductor photocathodes
W. Andreas Schroeder, L. A. Angeloni, I-J. Shan +1
A presented analytical formulation of (optical)phonon-mediated and momentum-resonant Franck-Condon emission of photoexcited electrons from polar semiconductors is shown to be very…