Elastic energy of strained islands: Contribution of the substrate as a function of the island aspect ratio and inter-island distance

Applied Physics Letters

Volumn 72, Issue 23, 1998, Pages 2984-2986

  Ponchet, A ^a   Lacombe, D ^a   Durand, L ^a   Alquier, D ^a   Cardonna, J M ^a  

^a CEMES CNRS   (France)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000351767     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.121515     Document Type: Article

References (24)

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21. 44=46GPa for InP.
22. Taking into account a wetting layer (WL), a different distribution of the energy within the substrate, the island and the WL was obtained. The evolution of this distribution as a function of the island aspect ratio and inter-island distance was qualitatively similar with and without WL.
23. 2D=0.085 (d=b).
24. An increase in the elastic energy density is also obtained by hardening of the substrate (its elastic modulus being artificially increased) as shown in Ref. 20. This also is accompanied by a decrease of the substrate contribution.