ON FACETING KINETICS

We suggest that the slow, scale-invariant coarsening regime in facetin g kinetics is governed by long-tailed algebraic distributions of kink- antikink reorganization times. This makes the problem similar to dispe rsive charge transport in disordered materials. A qualitative explanat ion is given for the low experimental value of the dynamic exponent (p hi similar or equal to 1/6) describing the growth of groove width.