Fractal properties of AlGeNi layers on GaAs surfaces

Bernadett Varga, László Milán Molnár, Szilvia Nagy, Imre Mojzes

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The thermal interactions of thin AlGe and AlNiGe layers with a bulk GaAs monocrystal were investigated. The heat treatment of these systems was carried out in the working chamber of a scanning electron microscope. The SEM pictures were analysed using a fractal mathematical technique. It was found that the surface of the samples has fractal character. No temperature dependence of the fractal dimension was observed. The samples were also studied using the structural entropy versus filling factor maps of the samples in order to find their localization properties. The SEM pictures of AlGe perform mostly as a Gaussian functions, whereas the AlNiGe samples show usually a behaviour with exponential decay.

Original languageEnglish
Pages (from-to)251-253
Number of pages3
JournalVacuum
Volume84
Issue number1
DOIs
Publication statusPublished - Aug 25 2009

Fingerprint

Fractals
fractals
Scanning electron microscopy
Fractal dimension
Entropy
Electron microscopes
Heat treatment
Scanning
scanning electron microscopy
heat treatment
electron microscopes
chambers
entropy
Temperature
temperature dependence
scanning
gallium arsenide
single crystals
decay
interactions

Keywords

  • AlNiGe
  • Compound semiconductors
  • Fractals
  • Thin metallic layers

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Instrumentation
  • Surfaces, Coatings and Films

Cite this

Fractal properties of AlGeNi layers on GaAs surfaces. / Varga, Bernadett; Molnár, László Milán; Nagy, Szilvia; Mojzes, Imre.

In: Vacuum, Vol. 84, No. 1, 25.08.2009, p. 251-253.

Research output: Contribution to journalArticle

Varga, B, Molnár, LM, Nagy, S & Mojzes, I 2009, 'Fractal properties of AlGeNi layers on GaAs surfaces', Vacuum, vol. 84, no. 1, pp. 251-253. https://doi.org/10.1016/j.vacuum.2009.06.005
Varga, Bernadett ; Molnár, László Milán ; Nagy, Szilvia ; Mojzes, Imre. / Fractal properties of AlGeNi layers on GaAs surfaces. In: Vacuum. 2009 ; Vol. 84, No. 1. pp. 251-253.
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