  Dzyaloshinskii-Moriya interaction (DMI) manifesting in asymmetric layered
ferromagnetic films gives rise to non-colinear spin structures stabilizing
magnetization configurations with nontrivial topology. In this work
magnetization reversal, domain structure, and strength of DMI are related with
the structure of W/Co/Pt multilayers grown by molecular beam epitaxy. Applied
growth method enables fabrication of layered systems with higher crystalline
quality than commonly applied sputtering techniques. As a result, a high value
of D coefficient was determined from the aligned magnetic domain stripe
structure, substantially exceeding 2 mJ/m2. The highest value of DMI value
D$_{eff}$ = 2.64mj/m2 and strength of surface DMI parameter DS = 1.83pJ/m for
N=10 has been observed. Experimental results coincide precisely with those
obtained from structure based micromagnetic modelling and density functional
theory calculations performed for well-defined layered stacks. This high value
of DMI strength originates from dominating contributions of the interfacial
atomic Co layers and additive character from both interface types.
