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Table 1 Sizes and magnetic properties of the hematite shapes

From: Nano-structural effects on Hematite (α-Fe2O3) nanoparticle radiofrequency heating

Sample Names

Avg. Sizea (nm)

Ms (emu/g)

Mr (emu/g)

Mr/Ms

Hc (Oe)

Nanorods

 ~ 38

4.58

0.264

0.058

30.0

Nanosheets

4–7 ×  ~ 200 [24]

3.25

0.020

0.006

20.0

Nanodiamonds

 ~ 24

1.02b

0.004

n/a

27.8

Nanospheres

 ~ 66

0.69

0.020

0.029

27.5

Rugby balls

 ~ 178

0.96b

0.200

n/a

2750

  1. aDetermined from SEM images
  2. bMagnetization value measured at maximum magnetic field (50 kOe)