Table 1 Summary of the blocking (TB) and crossover temperature (TC) for some nanomaterials

From: Quantum Tunneling of Magnetization in Ultrasmall Half-Metallic V3O4 Quantum Dots: Displaying Quantum Superparamagnetic State

Materials

Average Size (nm)

TB (K)

TC (K)

Ref.

γ-Fe2O3

5

220

2.2

17

FeC

3.6

20

1

18

CoFe2O4 (in water)

3

170

2.5

19

CoFe2O4 (in silicate)

3

170

5

19

FeOOH

3

47

7

20

NiFe2O4

7

170

2

21

ferritin

8

13

2.1

22

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