Sample

Coercivity

Hc (Oe)

Magnetization

Ms (emu/g)

Remanence

Mr (emu/g)

Squareness

Mr/Ms

HAP/3% f-MWCNTS

410.30

50

20

0.4

(HAP/3% f-MWCNTs)/1% cobalt ferrite

540.35

1500

650

0.433

(HAP/3% f-MWCNTs)/3% cobalt ferrite

630.15

2100

350.15

0.166

(HAP/3% f-MWCNTs)/5% cobalt ferrite

850.50

2400

650.45

0.27