We investigate the formation of partially filled domain walls in the
two-dimensional Hubbard model in the presence of long-range interaction. Using
an unrestricted Gutzwiller variational approach we show that: i) the strong
local interaction favors charge segregation in stripe domain walls; ii) The
long-range interaction favors the formation of half-filled vertical stripes
with a period doubling due to the charge and a period quadrupling due to the
spins along the wall. Our results show that, besides the underlying lattice
structure, also the electronic interactions can contribute to determine the
different domain wall textures in Nd doped copper oxides and nickel oxides
