We show by molecular dynamics simulations on a scale comparable to experimental dimensions that a peculiar surface reconstruction of the {105} facets is responsible for the stability of Ge pyramids on Si(001). This finding is confirmed by ab initio total energy calculations for competing surface reconstructions and a very satisfactory comparison of the corresponding charge density maps to scanning tunneling microscopy measurements of the facets, both for filled and empty states
Raiteri, P., Migas, D., Miglio, L., Rastelli, A., von Kanel, H. (2002). Critical role of the surface reconstruction in the thermodynamic stability of {105} Ge pyramids on Si(001). PHYSICAL REVIEW LETTERS, 88(25) [10.1103/PhysRevLett.88.256103].
Critical role of the surface reconstruction in the thermodynamic stability of {105} Ge pyramids on Si(001)
Miglio, L;
2002
Abstract
We show by molecular dynamics simulations on a scale comparable to experimental dimensions that a peculiar surface reconstruction of the {105} facets is responsible for the stability of Ge pyramids on Si(001). This finding is confirmed by ab initio total energy calculations for competing surface reconstructions and a very satisfactory comparison of the corresponding charge density maps to scanning tunneling microscopy measurements of the facets, both for filled and empty statesI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.