Simple analytical expression for work function in the “nearest neighbour” approximation

Simple analytical expression for work function in the “nearest neighbour” approximation

Nonlocal operator of potential is suggested, based on the “nearest neighbour” approximation (NNA) for single electron wave function in metals. It is shown that Schrödinger equation with nonlocal potential leads to quite simple analytical expression for work function, which surprisingly well fits to...

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Veröffentlicht in:Physics letters. A 2011-01, Vol.375 (3), p.671-675
Hauptverfasser: Chrzanowski, J., Kravtsov, Yu.A.
Format: Artikel
Sprache:eng
Schlagworte:
Approximation
Exact solutions
Mathematical analysis
Nonlocal potential
Operators
Schroedinger equation
Single electrons
Solid state physics
The nearest neighbor approximation
Wave functions
Work function
Work functions
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Zusammenfassung:Nonlocal operator of potential is suggested, based on the “nearest neighbour” approximation (NNA) for single electron wave function in metals. It is shown that Schrödinger equation with nonlocal potential leads to quite simple analytical expression for work function, which surprisingly well fits to experimental data.
ISSN:0375-9601
1873-2429
DOI:10.1016/j.physleta.2010.11.051