Self-assembly of Ge quantum dots on periodically corrugated Si surfaces
Self-assembly of Ge quantum dots on periodically corrugated Si surfaces
Buljan, M.; Facsko, S.; Delač Marion, I.; Mikšić Trontl, V.; Kralj, M.; Jerčinović, M.; Baehtz, C.; Muecklich, A.; Holý, V.; Grenzer, J.; Radić, N.
The fabrication of regularly ordered Gequantum dot arrays on Si surfaces usually requires extensive preparation processing, ensuring clean and atomically ordered substrates, while the ordering parameters are quite limited by the surface properties of the substrate. Here, we demonstrate a simple method for fabrication of ordered Gequantum dots with highly tunable ordering parameters on rippled Si surfaces. The ordering is achieved by magnetron sputter deposition, followed by an annealing in high vacuum. We show that the type of ordering and lattice vector parameters of the formed Gequantum dot lattice are determined by the crystallographic properties of the ripples, i.e., by their shape and orientation. Moreover, the ordering is achieved regardless the initial amorphisation of the ripples surface and the presence of a thin oxide layer.
Involved research facilities
- Rossendorf Beamline at ESRF DOI: 10.1107/S1600577520014265
Related publications
- DOI: 10.1107/S1600577520014265 is cited by this (Id 22725) publication
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Applied Physics Letters 107(2015), 203101
DOI: 10.1063/1.4935859
Cited 4 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-22725