The raw data file contains the data for making the graphs for figures 3,5,6 and 7 for the paper Manganese iron oxide nanoparticle clusters and their potential as agents for magnetic resonance imaging and hyperthermia" published in PCCP, 2016,Manuscript ID: CP-ART-03-2016-002094.R1 . All the data was processed using the University licenced for the program Origin. All the files can be opened using the program Origin.