Review of Core/Shell Nanoparticles

A very complete review article focused on the synthesis, preparation methods, application and classification of all kind of core/shell NPs, not only magnetic:

Core/Shell Nanoparticles: Classes, Properties, Synthesis Mechanisms, Characterization, and Applications
Rajib Ghosh Chaudhuri and Santanu Paria
Chemical Reviews 112, 2373 (2012)

Different core/shell nanoparticles: (a) spherical core/shell NPs ; (b) hexagonal core/shell NPs; (c) multiple small core materials coated by single shell material; (d) nanomatryushka material; (e) movable core within hollow shell material.