TY  - JOUR
A1  - Dzhanoev, Arsen R.
A1  - Spahn, Frank
A1  - Yaroshenko, Victoriya
A1  - Lühr, Hermann
A1  - Schmidt, Jürgen
T1  - Secondary electron emission from surfaces with small structure
T2  - Physical review : B, Condensed matter and materials physics
N2  - It is found that for objects possessing small surface structures with differing radii of curvature the secondary electron emission (SEE) yield may be significantly higher than for objects with smooth surfaces of the same material. The effect is highly pronounced for surface structures of nanometer scale, often providing a more than 100% increase of the SEE yield. The results also show that the SEE yield from surfaces with structure does not show a universal dependence on the energy of the primary, incident electrons as it is found for flat surfaces in experiments. We derive conditions for the applicability of the conventional formulation of SEE using the simplifying assumption of universal dependence. Our analysis provides a basis for studying low-energy electron emission from nanometer structured surfaces under a penetrating electron beam important in many technological applications.
Y1  - 2015
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/38595
SN  - 1098-0121
SN  - 1550-235X
VL  - 92
IS  - 12
PB  - American Physical Society
CY  - College Park
ER  -