TY - JOUR
T1 - Work function calculation of solid solution alloys using the image force model
AU - Rothschild, Jonathan Avner
AU - Eizenberg, Moshe
PY - 2010/6/3
Y1 - 2010/6/3
N2 - The electronic work function of polycrystalline solid solution alloys is being analytically calculated using three different approaches. All approaches are derived by assuming that the alloys are in equilibrium and therefore surface segregation causes a difference between the surface composition and the bulk composition. An approach based on the image force, an approach based on the dipole layer formed due to electronegativity differences, and a simple surface concentration approach are compared to published experimental results. The image force model has a good agreement with the experiments, while the dipole-layer approach has a poor agreement, challenging the conventional concept of the double layer.
AB - The electronic work function of polycrystalline solid solution alloys is being analytically calculated using three different approaches. All approaches are derived by assuming that the alloys are in equilibrium and therefore surface segregation causes a difference between the surface composition and the bulk composition. An approach based on the image force, an approach based on the dipole layer formed due to electronegativity differences, and a simple surface concentration approach are compared to published experimental results. The image force model has a good agreement with the experiments, while the dipole-layer approach has a poor agreement, challenging the conventional concept of the double layer.
UR - http://www.scopus.com/inward/record.url?scp=77956326594&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.81.224201
DO - 10.1103/PhysRevB.81.224201
M3 - 文章
AN - SCOPUS:77956326594
SN - 1098-0121
VL - 81
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 22
M1 - 224201
ER -