  Motivated by recent experiments on the observation of room temperature
skyrmions in a layered heterostructure and subsequent demonstration of
topological Hall effect in the same system, we have studied a minimal model of
itinerant electrons coupled to local moments with competing interactions in an
external magnetic field. Working in the limit of strong magneto-electric
coupling where the fast dynamics of the electrons can be decoupled from the
slow dynamics of the local moments (treated as classical spins), we analyze the
multiple field induced magnetic phases and the associated electronic transport
properties in these regimes. Our results help understand the microscopic origin
of the observed phenomena and further provide crucial insight into
unconventional magneto-transport in metallic chiral magnets.
