Abstract.
Spatial and energetic characteristics of the plasma plume by cross-beam pulsed-laser deposition (CBPLD) were investigated. Effective droplets filtering together with high efficiency of material usage are observed by this approach. Time-of-flight (TOF) technique with electrostatic ion collectors (Langmuir probes operating in the ion-collecting mode) were applied to obtain kinetic energy distribution functions of ionized particles and to compare the ionization degrees of the plasma by the CBPLD and by the conventional PLD. The average and maximum kinetic energies of the ions by the CBPLD are found to be 2–3 times lower as compared to the conventional PLD. At the same time, the fraction of ionized species and highly exited neutrals (Rydberg atoms) in the CBPLD plasma is 1.5–2 times larger in comparison to the conventional approach. Re-sputtering of the material of the growing film by fast ions is a considerable effect in both the PLD methods by the chosen experimental conditions. The angular width of the directional pattern of the plasma plume by CBPLD is comparable to that typical for the conventional PLD.
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Received: 21 December 1998 / Accepted: 28 March 1999 / Published online: 7 July 1999
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Tselev, A., Gorbunov, A. & Pompe, W. Features of the film-growth conditions by cross-beam pulsed-laser deposition . Appl Phys A 69, 353–358 (1999). https://doi.org/10.1007/s003390051013
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DOI: https://doi.org/10.1007/s003390051013