NachhaltigEuropan Campus Rottal-Inn
A. Milosavljević, K. Schiessl, C. Lemell, K. Tökési, M. Mátéfi-Tempfli, Stefan Mátéfi-Tempfli, B. Marinković, J. Burgdörfer
Charging dynamics in electron transmission through Al2O3 capillaries
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 279, pp. 190-193
We have measured the transmission of low-energy electrons through insulating Al2O3 nanocapillaries. We find that transmission at the incident energy is quickly suppressed with increasing tilt angle of the capillary axis relative to the incoming electron beam while inelastic transmission becomes more important. For small angles of incidence charging dynamics lead to a decrease of total transmission (elastic and inelastic) with time. Our results are interpreted on the basis of a microscopic model for the electron transport within the capillary including also close interactions with the capillary wall.