Table 1.
Description of the samples and summary of selected properties.
| Sample structure | [Py/Ti] 3/Cu/[Ti/Py] 3 | [Py/Ti] 6/Cu/[Ti/ Py] 6 | [Py/Ti] 12/Cu/[Ti/ Py] 12 |
| Sample identifier | MSPy100 | MSPy50 | MSPy25 |
| FeNi layer thickness | 100 nm | 50 nm | 25 nm |
| RDC (Ω) | 1.65 | 2.51 | 2.25 |
| Hc (Oe) | 0.15 | 0.20 | 0.40 |
| Hk (Oe) | 2.8 | 4.0 | 4.5 |
| (ΔZ/Z)max (%) | 270 | 210 | 170 |
| (ΔR/R)max (%) | 580 | 420 | 380 |
| s [(ΔZ/Z)/ΔH] max (%/Oe) | 140 | 110 | 60 |
| s [(ΔR/R)/ΔH] max (%/Oe) | 230 | 160 | 100 |
RDC—DC resistance of the sample; Hc—coercive field; Hk—anisotropy field; (ΔZ/Z)max; (ΔR/R)max—maximum values of the MI ratio for the absolute value of the impedance and for the real part respectively. s [(ΔZ/Z)/ΔH] max, s [(ΔR/R)/ΔH] max—maximum sensitivities of both ratios.