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Generation of an ordered Ge quantum dot array in an amorphous silica matrix by ion beam irradiation


Buljan, Maja; Bogdanović Radović, Ivančica; Karlušić, Marko; Desnica, Uroš; Radić, Nikola; Skukan, Natko; Dražić, Goran; Ivanda, Mile; Gamulin, Ozren; Matej, Zdenek et al.
Generation of an ordered Ge quantum dot array in an amorphous silica matrix by ion beam irradiation // Physical Review B - Condensed Matter and Materials Physics, 81 (2010), 085321-1 doi:10.1103/PhysRevB.81.085321 (međunarodna recenzija, članak, znanstveni)


Naslov
Generation of an ordered Ge quantum dot array in an amorphous silica matrix by ion beam irradiation

Autori
Buljan, Maja ; Bogdanović Radović, Ivančica ; Karlušić, Marko ; Desnica, Uroš ; Radić, Nikola ; Skukan, Natko ; Dražić, Goran ; Ivanda, Mile ; Gamulin, Ozren ; Matej, Zdenek ; Valeš, Vaclav ; Grenzer, Joerg ; Cornelius, Thomas ; Metzger, Hartmund Till ; Holy, Vaclav

Izvornik
Physical Review B - Condensed Matter and Materials Physics (1098-0121) 81 (2010); 085321-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Ge; quantum dots; ion beam irradiation; quantum dot lattices

Sažetak
We studied the generation of an ordered quantum dot array in an amorphous silica matrix by ion beam irradiation. In particular we investigated the influence of the irradiation process on the nucleation of Ge clusters, on the correlations in their positions and on the crystalline quality of Ge quantum dots formed after subsequent annealing. We have developed a method for the description of the intensity of grazing-incidence x-ray small angle scattering from irradiated multilayers, that enables a precise determination of the arrangement of quantum dots as well as their position correlation and size distribution. The analysis shows that the irradiation causes an ordering of Ge clusters along the irradiation direction, substantially improving the correlation in their positions. The observed phenomena are explained and simulated by a Monte-Carlo model based on the modification of local Ge density induced by ion tracks in the irradiated multilayers.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
098-0982886-2866 - Temeljna svojstva nanostruktura i defekata u poluvodičima i dielektricima (Branko Pivac, )
098-0982886-2895 - Novi amorfni i nanostrukturirani tankoslojni materijali (Nikola Radić, )
098-0982886-2897 - Poluvodički materijali za optoelektroniku i nanotehnologiju (Branko Šantić, )
098-0982904-2898 - Fizika i primjena nanostruktura i volumne tvari (Mile Ivanda, )
098-1191005-2876 - Procesi interakcije ionskih snopova i nanostrukture (Milko Jakšić, )
108-1080134-3105 - Mehanizmi narušavanja strukture lipoproteina djelovanjem vanjskih čimbenika (Ozren Gamulin, )

Ustanove
Institut "Ruđer Bošković", Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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