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The motion of steps on the (001) surface of MgAl 2 O 4 spinel is discussed. Atomic force microscopy observations of surface faceting and evaporation after heating to high temperatures are reported. The structural relationship between single and double-surface steps on the MgAl 2 O 4 (001) surface is established. Mechanisms for the formation, motion and dissociation...
The structure of evaporation patterns created by stationary and moving dislocations which terminate on the (001) surface of MgAl2O4 is discussed. When the Burgers vectors of the dislocations are inclined with respect to the (001) crystal plane, these dislocations create evaporation patterns in the form of double spirals. The double evaporation spirals develop through the synergistic rotation of pairs...
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