Local electromigration model for crystal surfaces.
The dynamics of crystal surfaces in the presence of electromigration is analyzed. From a phase field model with a migration force which depends on the local geometry, a step model with additional contributions is derived in the kinetic boundary conditions. These contributions trigger various surface instabilities, such as step meandering, bunching, and pairing on vicinal surfaces. Experiments are discussed.
Pierre-Louis
O
O
CNRS/Laboratoire de Spectrométrie Physique, UJF-Grenoble 1, B.P. 87, F38402 Saint Martin d'Hères, France.