Nonlinear compact localized modes in flux-dressed octagonal-diamond latticeNonlinear compact localized modes in flux-dressed octagonal-diamond lattice Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2024-03-042022enTuning the values of artificial flux in the two-dimensional octagonal-diamond lattice drives topological phase transitions, including between singular and non-singular flatbands. We study the dynamical properties of nonlinear compact localized modes that can be continued from linear flatband modes. We show how the stability of the compact localized modes can be tuned by the nonlinearity strength or the applied artificial flux. Our model can be realized using ring resonator lattices or nonlinear waveguide arrays.This research was supported in part by the Polisimulator project co-financed by Greece and the EU Regional Development Fund.http://creativecommons.org/licenses/by/4.0/Physica Scripta973 Stojanovic Mirjana Gündoğdu S. Leykam Daniel Angelakis Dimitrios Αγγελακης Δημητριος Stojanović Krasić Marija Stepić M. Maluckov Aleksandra IOP Publishing Nonlinear compact localized modes Flux-driven topological phase transistions Octagonal-diamond lattice Flatbands