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- Title
Conductance through analytic constrictions.
- Authors
Koudela, D.; Uimonen, A.-M.; Häkkinen, H.
- Abstract
We study the dependence of the intrinsic conductance of a nanocontact on its shape by using the recursion-transfer-matrix method. Hour-glass, torus, and spherical shapes are defined through analytic potentials, the latter two serving as rough models for ring-like and spherical molecules, respectively. The sensitivity of the conductance to geometric details is analyzed and discussed. Strong resonance effects are found for a spherical contact weakly coupled to electron reservoirs.
- Subjects
MATRIX method (Indexing); HOURGLASSES; SPHERES; GEOMETRIC shapes; GEOMETRY; ELECTRONS
- Publication
European Physical Journal B: Condensed Matter, 2009, Vol 68, Issue 1, p111
- ISSN
1434-6028
- Publication type
Article
- DOI
10.1140/epjb/e2009-00072-0