“…For all these composites, the loop is complete, thin with a small opening of the hysteresis loop, which specifies soft magnetic behaviour of the material. The M-H curves are not saturated for the applied magnetic field of 15 kOe for all the composition 40 . So, the saturation magnetization can be calculated by using the law of approach to saturation (LAS) method 40 .…”
Section: Results Discussionmentioning
confidence: 90%
“…The M-H curves are not saturated for the applied magnetic field of 15 kOe for all the composition 40 . So, the saturation magnetization can be calculated by using the law of approach to saturation (LAS) method 40 . According to this method, the magnetization obtained at highest field can be expressed as Figure 4 ( a ) The variations of magnetization (M) with magnetic field (H) at RT for all the compositions.…”
Multiferroic composites are promising candidates for magnetic field sensors, next-generation low power memory and spintronic devices, as they exhibit much higher magnetoelectric (ME) coupling and coupled ordering parameters compared to the single-phase multiferroics. Hence, the 3-0 type particulate multiferroic composites having general formula (1 − Φ)[PbFe0.5Nb0.5O3]-Φ[Co0.6Zn0.4Fe1.7Mn0.3O4] (Φ = 0.0, 0.05, 0.1, 0.2, 0.3, 0.4, 0.5, 1.0, (1 − Φ) PFN-ΦCZFMO) were prepared using a hybrid synthesis technique. Preliminary structural and microstructural analysis were carried out using XRD and FESEM techniques, which suggest the formation of 3-0 type particulate composite without the presence of any impurity phases. The multiferroic behaviour of the composites is studied with polarization versus electric field (P-E) and magnetization versus magnetic field (M-H) characteristics at room temperature. The nature of ME coupling was investigated elaborately by employing the Landau free energy equation along with the magneto-capacitance measurement. This investigation suggests the existence of biquadratic nature of ME coupling (P2M2). The magneto-electric coupling measurement also suggests that strain mediated domain coupling between the ferroelectric and magnetic ordering is responsible for the magneto-electric behaviour. The obtained value of direct ME coefficient 26.78 mV/cm-Oe for Φ = 0.3, found to be higher than the well-known single-phase materials and polycrystalline composites.
“…For all these composites, the loop is complete, thin with a small opening of the hysteresis loop, which specifies soft magnetic behaviour of the material. The M-H curves are not saturated for the applied magnetic field of 15 kOe for all the composition 40 . So, the saturation magnetization can be calculated by using the law of approach to saturation (LAS) method 40 .…”
Section: Results Discussionmentioning
confidence: 90%
“…The M-H curves are not saturated for the applied magnetic field of 15 kOe for all the composition 40 . So, the saturation magnetization can be calculated by using the law of approach to saturation (LAS) method 40 . According to this method, the magnetization obtained at highest field can be expressed as Figure 4 ( a ) The variations of magnetization (M) with magnetic field (H) at RT for all the compositions.…”
Multiferroic composites are promising candidates for magnetic field sensors, next-generation low power memory and spintronic devices, as they exhibit much higher magnetoelectric (ME) coupling and coupled ordering parameters compared to the single-phase multiferroics. Hence, the 3-0 type particulate multiferroic composites having general formula (1 − Φ)[PbFe0.5Nb0.5O3]-Φ[Co0.6Zn0.4Fe1.7Mn0.3O4] (Φ = 0.0, 0.05, 0.1, 0.2, 0.3, 0.4, 0.5, 1.0, (1 − Φ) PFN-ΦCZFMO) were prepared using a hybrid synthesis technique. Preliminary structural and microstructural analysis were carried out using XRD and FESEM techniques, which suggest the formation of 3-0 type particulate composite without the presence of any impurity phases. The multiferroic behaviour of the composites is studied with polarization versus electric field (P-E) and magnetization versus magnetic field (M-H) characteristics at room temperature. The nature of ME coupling was investigated elaborately by employing the Landau free energy equation along with the magneto-capacitance measurement. This investigation suggests the existence of biquadratic nature of ME coupling (P2M2). The magneto-electric coupling measurement also suggests that strain mediated domain coupling between the ferroelectric and magnetic ordering is responsible for the magneto-electric behaviour. The obtained value of direct ME coefficient 26.78 mV/cm-Oe for Φ = 0.3, found to be higher than the well-known single-phase materials and polycrystalline composites.
“…[30]. As a result, taking into account a rather high temperature of the phase transition from ferrimagnetic to paramagnetic order allows considering these compounds as promising multiferroics [31]. Similar magnetoelectric materials on the base of hexaferrite systems will be compatible with components based on semiconductors and find technical applications in designing of modern devices such as sensors [32] or converters of magnetoelectric effects [33,34,35].…”
“…The pH-value of the solution was maintained at ∼7, using the ammonia solution. The solution was then stirred continuously at 473 K for 3 h (for Mn substituted compounds) and at 423 K for SrM 15 and allowed for combustion to occur. In the case of the Mn-substituted compounds, ethylene glycol (along with citric acid) was used in a 1 : 3 ratio with respect to metal nitrates.…”
Section: Methodsmentioning
confidence: 99%
“…In our earlier report, we reported that the lattice strain due to partial substitution of Bi at Sr-site in SrFe 12 O 19 enhances the linear magnetoelectric coupling. 15…”
Manganese substituted strontium hexaferrite (SrFe12-xMnxO19; x = 0, 3, 5, and 7) prepared by sol-gel auto-combustion method are studied. It is observed that the substituted Mn preferentially goes to the...
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