C field applied parallel and perpendicular for the NWs’ longitudinal axis. Systems LFe (nm) 20 five 60 7 260 26 30 3 100 8 300 60 Hc (Oe) 84 40 490 60 840 40 430 30 620 45 890 Hc (Oe)mr 0.15 0.04 0.40 0.ten 0.78 0.03 0.37 0.02 0.56 0.04 0.72 0.mr(Fe(20 nm) /Cu(60 nm))15 (Fe(60 nm) /Cu(60 nm))15 (Fe(260 nm) /Cu(60 nm))15 (Fe(30 nm) /Cu(120 nm))15 (Fe(one hundred nm) /Cu(120 nm))15 (Fe(300 nm) /Cu(120 nm))60 40 350 30 390 one hundred 280 35 260 50 363 0.09 0.01 0.25 0.05 0.11 0.08 0.20 0.02 0.17 0.03 0.09 0.Nanomaterials 2021, 11, 2729 Nanomaterials 2021, 11, x FOR PEER REVIEWof 12 9 9ofFigure six. (a) Decreased remanence and (b) coercivity values as a function on the Fe length, measured when applying a Figure six. (a) Lowered remanence and (b) coercivity values as a function in the Fe length, measured when applying a magnetic field parallel for the wires’ long axis. (c) Coercive field as a function from the Fe segment length in Fe/Cu NWs with magnetic field parallel for the wires’ extended axis. (c) Coercive field as a function of the Fe segment length in Fe/Cu NWs using a Cu spacer length of 120 (full symbols) and 60 nm (open symbols), too as in the 3- -length isolated Fe NW (blue a Cu spacer length of 120 (full symbols) and 60 nm (open symbols), at the same time as within the 3- -length isolated Fe NW (blue continuous line), extracted in the simulated hysteresis loops when the external field was applied parallel towards the NW’s continuous line), extracted in the simulated hysteresis loops when the external field was applied parallel towards the NW’s longitudinal axis. longitudinal axis.Regarding the Phalloidin MedChemExpress evolution ofof the simulated coercive fieldsfunction with the Fe segment With regards to the evolution the simulated coercive fields as a as a function of the Fe length for Cu spacer lengths of 60 and of nm (Figure nm (Figure 6c), these values segment length for Cu spacer lengths 120 60 and 120 6c), these values progressively enhanced with the Fe length, approaching approaching the worth corresponding for the progressively enhanced together with the Fe length, the value corresponding towards the lengthy Fe NW. Again, and despite obtaining in spite of having simulated only 1 wire, a great qualitative extended Fe NW. Once again, and simulated only a single wire, a fantastic qualitative correlation together with the experimental information was experimental information was accomplished, demonstrating that larger correlation with all the accomplished, demonstrating that bigger magnetostatic interactions are acting around the interactions are acting around the NWs when magnetostaticNWs when the Fe segments are longer. the Fe segments are longer.four. Conclusions 4. Conclusions Within this work, bi-segmented multilayered Fe/Cu NWs have been effectively Within this work, bi-segmented multilayered Fe/Cu NWs have already been effectively fabricated by pulsed electrodeposition in AAO templates, presenting apresenting a 45 nm andof 45 nm fabricated by pulsed electrodeposition in AAO templates, diameter of diameter variable aspect BGP-15 medchemexpress ratios. Their ratios. Their characterization revealed uniform and distinguishable and variable aspectmorphologicalmorphological characterization revealed uniform and layers, though the structural one showed a polycrystalline body-centered cubic (bcc) structure distinguishable layers, when the structural one particular showed a polycrystalline body-centered for either the Fe or Cu NWs. The magnetic Cu NWs. The magnetic measurements and cubic (bcc) structure for either the Fe or measurements and micromagnetic simulations have demonstrated that the behavior on the Fe/Cu NWs might be easily tuned.
