Altered magnetism in maghemite NP by Cu shell

Tuning the surface magnetism of gamma-Fe2O3 nanoparticles with a Cu shell.
R. D. Desautels, E. Skoropata, Y.-Y. Chen, H. Ouyang, J. W. Freeland, and J. van Lierop
Appl. Phys. Lett. 99, 262501 (2011)

Increased surface spin stability in gamma -Fe2O3 nanoparticles with a Cu shell
R. D. Desautels, E. Skoropata, Y.-Y. Chen, H. Ouyang, J. W. Freeland, and J. van Lierop 
J. Phys. CM 24, 146001 (2012) 

Field dependence of the interfacial Cu in Cu-coated c-Fe2O3 nanoparticles.
R. D. Desautels, Y.-Y. Chen, H. Ouyang, S.-C. Lo, J. W. Freeland, and J. van Lierop
J. Appl. Phys. 111, 07B518 (2012) 

Temperature dependence of the saturation magnetization (Ms, top) and the exchange bias loop shift, Hex, of the bare gamma-Fe2O3 and Cu(0.5 nm)/Fe2O3 nanoparticles. The inset shows typical M vs mu0 H behavior of the Cu(0.5 nm)/gamma-Fe2O3 nanoparticles