Abstract
The desorption by dimers from a surface is studied. Migration on the lattice and interaction between neighboring adatoms can exist. Starting from a master equation with transition probabilities in the Arrhenius form, a set of kinetic equations is obtained. For a square lattice, when lateral interaction is repulsive and surface mobility operates, rate desorption curves first exhibit a maximum, next a shoulder, and finally a long tail. For the linear chain and all the other cases of the square lattice these curves show only a maximum.
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