  We have investigated a holographic model of a multi-layered superconductor in
(2+1)-dimensions using the AdS/CFT correspondence. This correspondence allows
us to study strongly interacting condensed matter systems through a weakly
interacting gravitational theory. Our study focused on the effects of a finite
system size on the superconductor's properties. We observed significant
variations in the critical temperature and critical magnetic field depending on
the number of layers and the spacing between them. Notably, our results capture
the transition from a two-dimensional (2D) to a three-dimensional (3D) behavior
in the limit of a large number of closely spaced layers. This transition
signifies a change in how the superconductivity operates within real material.
