AVS 53rd International Symposium
    Surface Science Tuesday Sessions
       Session SS2-TuA

Paper SS2-TuA4
Water Clusters Growth on Pd(111) and Ru(0001) Studied by STM

Tuesday, November 14, 2006, 3:00 pm, Room 2004

Session: Water-Surface Interactions on Metals
Presenter: M. Tatarkhanov, University of California at Berkeley
Authors: M. Tatarkhanov, University of California at Berkeley
E. Fomin, University of California at Berkeley
D.F. Ogletree, Lawrence Berkeley National Laboratory
M. Salmeron, Lawrence Berkeley National Laboratory
Correspondent: Click to Email
Water clusters formation on clean Pd(111) and Ru(0001) surfaces has been studied using home-built variable temperature ultra-high vacuum scanning tunneling microscopy. Clusters with honeycomb internal structure were formed after low coverage and low temperature adsorption. Increasing the coverage of water at low temperature doesnâ?Tt create complete monolayer on both Pd(111) and Ru(0001), water forms very dense clusters and then starts to form second layer. This double layer exists only below 140K temperatures, after which it transforms into elongated clusters with bright perimeter for increased temperatures.