Guiding of low-energy electrons by highly ordered Al{sub 2}O{sub 3} nanocapillaries

Journal Article · Thu Mar 15 00:00:00 EDT 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.75.030901· OSTI ID:20982216

Milosavljevic, A R; Vikor, Gy; Pesic, Z D; Kolarz, P; Sevic, D; Marinkovic, B P ^[1]; Matefi-Tempfli, S; Matefi-Tempfli, M; Piraux, L ^[2]

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1. Institute of Physics, Pregrevica 118, 11080 Belgrade (Serbia)
2. Unite de Physico-Chimie et de Physique des Materiaux, Universite Catholique de Louvain, Place Croix du Sud, 1, B-1348 Louvain-la-Neuve (Belgium)

We report an experimental study of guided transmission of low-energy (200-350 eV) electrons through highly ordered Al{sub 2}O{sub 3} nanocapillaries with large aspect ratio (140 nm diameter and 15 {mu}m length). The nanochannel array was prepared using self-ordering phenomena during a two-step anodization process of a high-purity aluminum foil. The experimental results clearly show the existence of the guiding effect, as found for highly charged ions. The guiding of the electron beam was observed for tilt angles up to 12 degree sign . As seen for highly charged ions, the guiding efficiency increases with decreasing electron incident energy. The transmission efficiency appeared to be significantly lower than observed for highly charged ions and, moreover, the intensity of transmitted electrons significantly decreases with decreasing impact energy.

• OSTI ID: 20982216
• Journal Information: Physical Review. A, Vol. 75, Issue 3; Other Information: DOI: 10.1103/PhysRevA.75.030901; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM
ALUMINIUM OXIDES
ANODIZATION
CAPILLARIES
EFFICIENCY
ELECTRON BEAMS
ELECTRONS
EV RANGE 100-1000
FOILS
IONS
NANOSTRUCTURES
SURFACES
TRANSMISSION