초록 close

We introduce an anisotropic equilibrium surface model which has a restricted solid-on-olid condition in the y-direction and a restricted curvature condition in the x-direction. There are three di erent regimes: W(t)  t 1 for t < L2, W(t)  t 2 for L2 < t < L4 and W(L)  L for t  L4. The surface width in the y-direction shows that the roughness exponent rsos is near 1=4, but the surface width for the x-direction indicates that the roughness exponent is near 0:95. A possible continuum equation for the model is also discussed.