Intrinsic accuracy in 3-dimensional photoemission band mapping
By V. Strocov. 2002
149 citations recorded by the source corpus.
Abstract Fundamental principles of mapping 3-dimensional quasiparticle dispersions in the valence band using angle-resolved photoemission spectroscopy are discussed. Such mapping is intrinsically limited in accuracy owing to damping of the final states, resulting in equivalent broadening in the surface-perpendicular wavevector. Mechanisms of the intrinsic accuracy are discussed in depth based on a physically transparent picture involving interplay of the final- and initial-state spectral functions, and illustrated by photoemission simulations and experimental examples. Other interesting effects of 3-dimensional dispersions include ‘ghost’ photoemission peaks outside the Fermi surface and finite peak width at the Fermi level. Finally, optimization of the experiment on the intrinsic accuracy is discussed.
Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/9bfa3c280d106f4767a774e345d30ccf23c2761f
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Atomic and Molecular Physics, and Optics
In Materials Chemistry
Citations in the corpus
- Observation of Weyl nodes in TaAs (2015, background): “In addition, due to the Heisenberg uncertainty principle, the increase of the photoelectron escape depth sharpens the intrinsic experimental resolution in the surface-perpendicular momentum (kz) [30], allowing accurate navigation in the 3D momentum space.”