Conduction Channels of One-Atom Zinc Contacts

Details Conduction Channels of One-Atom Zinc Contacts Conduction Channels of One-Atom Zinc Contacts

2004-07-08

arxiv.org/abs/cond-mat/0407207v1

Phys. Rev. B 70, 241404 (2004).

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

revtex4, 5 pages, 5 figures

Scientific paper

10.1103/PhysRevB.70.241404

We have determined the transmission coefficients of atomic-sized Zn contacts using a new type of breakjunction which contains a whisker as a central bridge. We find that in the last conductance plateau the transport is unexpectedly dominated by a well-transmitting single conduction channel. We explain the experimental findings with the help of a tight-binding model which shows that in an one-atom Zn contact the current proceeds through the 4s and 4p orbitals of the central atom.

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