Emission properties of body-centered cubic elemental metal photocathodes

Journal Article · Tue Apr 07 00:00:00 EDT 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4916598· OSTI ID:22399401

Li, Tuo; Schroeder, W. Andreas ^[1]

---

1. Department of Physics, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, Illinois 60607-7059 (United States)

A first principles analysis of photoemission is developed to explain the lower than expected rms transverse electron momentum measured using the solenoid scan technique for the body-centered cubic Group Vb (V, Nb, and Ta) and Group VIb (Cr, Mo, and W) metallic photocathodes. The density functional theory based analysis elucidates the fundamental role that the electronic band structure (and its dispersion) plays in determining the emission properties of solid-state photocathodes and includes evaluation of work function anisotropy using a thin-slab method.

• OSTI ID: 22399401
• Journal Information: Journal of Applied Physics, Vol. 117, Issue 13; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANISOTROPY
BCC LATTICES
CHROMIUM
DENSITY FUNCTIONAL METHOD
ELECTRONS
EVALUATION
MOLYBDENUM
NIOBIUM
PHOTOCATHODES
PHOTOEMISSION
SLABS
SOLENOIDS
SOLIDS
TANTALUM
TUNGSTEN
VANADIUM
WORK FUNCTIONS