Publications

Diffusion kinetics in the Pd/Cu(001) surface alloy

Grant, M.L.; Swartzentruber, Brian S.; Bartelt, Norman C.; Hannon, J.B.

Diffusion of Pd in the Pd/Cu(100) surface alloy was studied as a function of temperature using atom tracking scanning tunneling microscopy. It was shown that Pd diffused by a vacany-exchange mechanism, by following the motion of individual Pd atom incorporated in the surface. Activation energy was measured for diffusion of incorporated Pd atom and was found to be in agreement with ab intio calculated energy.