Table 2 Hysteresis parameters obtained from low-temperature measurements
From: Constraining the magnetic properties of ultrafine- and fine-grained biogenic magnetite
Samples | Hc (mT) | Ms (Am2kg−1) | Mrs (Am2kg−1) | ||||||
|---|---|---|---|---|---|---|---|---|---|
5Â K | 10Â K | 20Â K | 5Â K | 10Â K | 20Â K | 5Â K | 10Â K | 20Â K | |
M1 | 25.1 | 10.0 | 0 | 23.7 | 23.7 | 22.6 | 7.4 | 4.1 | 0.4 |
M2 | 25.1 | 10.0 | 0 | 10.9 | 10.8 | 10.8 | 3.4 | 1.9 | 0.3 |
M3 | 25.1 | 10.0 | 0 | 3.8 | 3.7 | 3.7 | 1.2 | 0.7 | 0.2 |
M4 | 70.3 | 65.3 | 50.2 | 0.4 | 0.4 | 0.4 | 0.2 | 0.2 | 0.2 |