Louis, Y.Sheppard, A. P.Haelterman, M.2025-12-312025-12-310030-4018ORCID:/0000-0001-9792-4143/work/163624048https://hdl.handle.net/1885/733798579We present a new type of domain-wall vector solitary waves in isotropic self-defocusing Kerr media. These domain walls consist of localized structures separating uniform field domains of orthogonal linear polarizations. They result from the interplay between diffraction, self-phase modulation and cross-phase modulation in cases where the nonlinear birefringence coefficient B = χ(3)xyyx/χ(3)xxxx is negative. Numerical simulations show that these new vector solitary waves are stable.This researchh as been supportedb y the National Fund for Scientific Research and the Inter-university Attraction Pole program of the Belgian Government( Grant P3-0471.6en1997-09-0110.1016/S0030-4018(97)00235-60031233510