We have calculated the minimal domain structure in a ferromagnetic slab of
thickness t with two variational parameters the domain wall width, w, and t
he domain spacing, d, in the case t much less than d + w to the order (t/(d
+ w))(3). The temperature dependence of the domain structure within the fr
amework of the mean field theory is also considered. (C) 2000 Elsevier Scie
nce B.V. All rights reserved.