We present a novel approach to engineer the growth of strained epitaxial films based on tailoring the elastic-interaction potential between nanostructures with substrate vicinality. By modeling the island-island interaction energy surface within continuum elasticity theory, we find that its fourfold symmetry is broken at high miscuts, producing directions of reduced elastic-interaction energy. As a consequence, it is possible to direct the Ge island growth on highly misoriented Si(001) substrates towards desired pathways. © 2011 American Physical Society.

Persichetti, L., Sgarlata, A., Fanfoni, M., Balzarotti, A. (2011). Breaking elastic field symmetry with substrate vicinality. PHYSICAL REVIEW LETTERS, 106(5), 055503 [10.1103/PhysRevLett.106.055503].

Breaking elastic field symmetry with substrate vicinality

Persichetti L.
;
Balzarotti A.
2011-01-01

Abstract

We present a novel approach to engineer the growth of strained epitaxial films based on tailoring the elastic-interaction potential between nanostructures with substrate vicinality. By modeling the island-island interaction energy surface within continuum elasticity theory, we find that its fourfold symmetry is broken at high miscuts, producing directions of reduced elastic-interaction energy. As a consequence, it is possible to direct the Ge island growth on highly misoriented Si(001) substrates towards desired pathways. © 2011 American Physical Society.
2011
Persichetti, L., Sgarlata, A., Fanfoni, M., Balzarotti, A. (2011). Breaking elastic field symmetry with substrate vicinality. PHYSICAL REVIEW LETTERS, 106(5), 055503 [10.1103/PhysRevLett.106.055503].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/354475
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 15
  • ???jsp.display-item.citation.isi??? 14
social impact