Electrical current pulsations through ion irradiated polymer foils in electrolytes

0349187 - ÚJF 2011 RIV GB eng J - Journal Article
Fink, Dietmar - Cruz, S. - Vacík, Jiří - Hnatowicz, Vladimír
Electrical current pulsations through ion irradiated polymer foils in electrolytes.
Radiation Effects and Defects in Solids. Roč. 165, č. 11 (2010), s. 818-833. ISSN 1042-0150. E-ISSN 1029-4953
R&D Projects: GA AV ČR IAA200480702
Institutional research plan: CEZ:AV0Z10480505
Keywords : ASYMMETRIC NANOPORES * NETWORKS * OSCILLATORS
Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
Impact factor: 0.660, year: 2010

Funnel-type ion tracks were produced in thin polymer foils by swift heavy ion irradiation and subsequent treatment with both low concentration etchants and acids from two different sides. The funnel shapes consist of shallow etched cones and residual latent tracks and thus combine both their characteristic properties, rectification and current spike emission, in one track each. Arrays of spike-emitting tracks are known to exhibit phase-locked synchronous electrical pulsations in accordance with the neural network theory. These pulsations were studied here on arrays of funnel-type tracks for the first time. As expected, the results strongly depend on the track density. In foils with low track densities, synchronous oscillations are rare and rather unstable events, whereas foils with high track densities exhibit stable, strong and long-lasting pulsations.
Permanent Link: http://hdl.handle.net/11104/0189495