The effects of Cu2+ substitution on the magnetic properties showing maximum magnetization (Ms), coercivity (Hc), remanence (Mr), magnetic moment (nB), squareness ratio (Sr) and calculated maximum product, (BH)max for SFO, SGFCO-1, and SGFCO-2 samples.
| Sample | M s (emu g−1) | H c (kOe) | M r (emu g−1) | M r/Ms | n B | S r | (BH)max (MGOe) |
|---|---|---|---|---|---|---|---|
| SFO | 27.6 | 5.3 | 14.1 | 0.511 | 5 | 0.51 | 0.24 |
| SGFCO-1 | 51.6 | 1.9 | 25.8 | 0.500 | 10 | 0.5 | 0.84 |
| SGFCO-2 | 65.2 | 1.5 | 33.2 | 0.509 | 12 | 0.51 | 1.33 |