Building Pb nanomesas with atomic-layer precision.
Phys Rev Lett
; 92(10): 106104, 2004 Mar 12.
Article
em En
| MEDLINE
| ID: mdl-15089221
ABSTRACT
We demonstrate a novel scheme for manipulating metallic nanostructures involving a macroscopic number of atoms, yet with precise control in their local structures. The scheme entails a two-step process (a) a triggering step using a scanning tunneling microscope, followed by (b) self-driven and self-limiting mass-transfer process. By using this scheme, we construct Pb nanomesas on Si(111) substrates whose thickness can be controlled with atomic-layer precision. The kinetic barrier for the mass transfer and the underlying mechanism behind this novel manipulation are determined.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2004
Tipo de documento:
Article
País de afiliação:
Estados Unidos