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Table 1 Average particles diameter <D_TEM> , polydispersity evaluated as the coefficient of variation (COV), the temperature corresponding to the maximum of the ZFC curve (T_max), and the irreversible temperature between ZFC and FC curves (T_irr) are reported

From: The Boundary Between Volume and Surface-Driven Magnetic Properties in Spinel Iron Oxide Nanoparticles

Sample	<D_TEM> (nm)	COV (%)	T_max (K)	T_irr (K)
MAG1	5.4(1)	0.17(1)	17(1)	100(20)
MAG2	6.8(1)	0.12(1)	20(1)	200(30)
MAG3	7.9(1)	0.17(2)	53(2)	200(20)
MAG4	13.5(3)	0.35(4)	–	–

For MAG4 these two temperatures are above 300 K, the maximum value employed for the measurements

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