title: A molecular platinum cluster junction: a single-molecule switch.
abstract: We present a theoretical study of electron transport through single-molecule junctions incorporating a Pt(6) metal cluster bound within an organic framework. The insertion of this molecule between a pair of electrodes leads to a fully atomically engineered nanometallic device with high conductance at the Fermi level and two sequential high on/off switching states. The origin of this property can be traced back to the existence of a degenerate HOMO consisting of two asymmetric orbitals with energies close to the Fermi level of the metal leads. The degeneracy is broken when the molecule is contacted to the leads, giving rise to two resonances that become pinned to the Fermi level and display destructive interference.
authors: Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, 28049 Madrid, Spain. linda.zotti@uam.es
authors: Linda A
authors: LA
authors: Zotti
authors: Edmund
authors: E
authors: Leary
authors: Maria
authors: M
authors: Soriano
authors: Juan Carlos
authors: JC
authors: Cuevas
authors: Juan Jose
authors: JJ
authors: Palacios