  Using gauge/gravity duality, we investigate charge localization near an
interface in a strongly coupled system. For this purpose we consider a top-down
holographic model and determine its conductivities. Our model corresponds to a
holographic interface which localizes charge around a (1+1)-dimensional defect
in a (2+1)-dimensional system. The setup consists of a D3/D5 intersection at
finite temperature and charge density. We work in the probe limit, and consider
massive embeddings of a D5-brane where the mass depends on one of the field
theory spatial directions, with a profile interpolating between a negative and
a positive value. We compute the conductivity in the direction parallel and
perpendicular to the interface. For the latter case we are able to express the
DC conductivity as a function of background horizon data. At the interface, the
DC conductivity in the parallel direction is enhanced up to five times with
respect to that in the orthogonal one. We study the implications of broken
translation invariance for the AC and DC conductivities.
