Lecture Harold J.W. Zandvliet
|06 september 2005||FWN-Building 5116.0116, Nijenborgh 4, 9747 AG, Groningen|
|Speaker:||Harold J.W. Zandvliet|
|Affiliation:||Solid-state physics, MESA+ Research Institute for Nanotechnology, University of Twente|
|Date:||Tue Sep 6, 2005|
|Host:||B. de Boer|
|Telephone:||+31 50 363 4370|
The existence of one-dimensional (1D) electronic states between self-organized Pt nanowires, that are either 1.6 nm or 2.4 nm spaced apart on a Ge(001) surface, is revealed by low-temperature scanning tunneling microscopy. These perfectly straight Pt nanowires act as barriers for a surface state (located just below the Fermi level) of the underlying Pt-modified terrace. The energy positions of the 1D electronic states, observed for both inter-wire distances, are in good agreement with the energy levels of a quantum particle in a well. Spatial maps of the differential conductivity of these 1D electronic states conclusively reveal that these states are exclusively present in the troughs between the Pt nanowires.
In second part of my talk I will show some results we obtained recently in the field of molecular electronics. Among them are inelastic electron tunneling spectroscopy of self-assembled decanethiol monolayers, conductance switching of conjugated molecules inserted into self-assembled monolayers and Coulomb blockade of small Pd clusters deposited on self-assembled monolayers.
|Laatst gewijzigd:||22 oktober 2012 14:30|