Table 1. Magnetic Moment Obtained at H = 4 T (Ms), Remanent Magnetization (Mr), and Coercivity Field (Hc) Estimated for the CoFe2O4, NiFe2O4, and Co0.5Ni0.5Fe2O4 NPs Measured at Four Temperatures.
sample | temp (K) | Ms (emu/g) | Mr (emu/g) | Hc (Oe) | Mr/Ms |
---|---|---|---|---|---|
CoFe2O4 | 300 | 52.63 | 20.87 | 1274 | 0.40 |
100 | 57.21 | 46.499 | 8862 | 0.81 | |
10 | 56.25 | 48.367 | 13 002 | 0.86 | |
1.8 | 56.42 | 48.367 | 13 002 | 0.86 | |
NiFe2O4 | 300 | 30.21 | 4.00 | 159 | 0.13 |
100 | 33.23 | 8.58 | 360 | 0.26 | |
10 | 33.27 | 10.41 | 422 | 0.31 | |
1.8 | 33.81 | 9.92 | 481 | 0.29 | |
Co0.5Ni0.5Fe2O4 | 300 | 43.56 | 15.62 | 886 | 0.36 |
100 | 47.81 | 35.40 | 6591 | 0.74 | |
10 | 47.40 | 37.16 | 8955 | 0.78 | |
1.8 | 47.53 | 37.16 | 8955 | 0.78 |