Remanence Ratio Research Articles

The magnetic property of CoFe2O4 assembly by the gradient magnetic field

The CoFe2O4 assembly was synthesized through the thermal decomposition under the gradient magnetic field. The applied magnetic field (AMF) changes the spherical-like aggregates in the case of the field-free synthesis to the rod-like ones synthesized in the AMF. All the assemblies consist of nanoparticles (NPs). The AMF reduces and adjusts the size of NPs and hence the magnetic properties, enabling us to obtain the single-domain and super-paramagnetic NPs. The AMF can change the coercivity in a broad range of 213 Oe ~ 11,500 Oe and increase the remanence ratio at 10 K from 0.64 to 0.75. This work reports a new route to synthesize the magnetic materials with the clean surface, different particle size and magnetic properties, suitable for the demands in different applications, simply by changing the strength of AMF in the absence of any additives and templates.

Laser assisted hydrothermal synthesis of magnetic ferrite nanoparticles for biomedical applications

In this work, copper substituted cobalt ferrite nanoparticles Co1-xCuxFe2O4 (×=0, 0.3, and 0.7), has been synthesized via laser assisted hydrothermal synthesis (LAHS) methods. The XRD patterns showed single phase spinel structure, comparative study between the two preparation methods, effect of laser irradiation on the structural properties, and average crystallite size that is evaluated from most intense peak (311) utilizing Scherrer formula. Further studies for laser assisted hydrothermal as-prepared ferrite samples using each of Field emission-scanning electron microscope (FE-SEM) which revealed the study of topography, shape, particle size, vibrating sample magnetometer (VSM) with in 15kOe as maximum field. That was used to study the magnetic properties and confirmed the super-paramagnetic property of the prepared ferrite nanoparticles. Coercivity (Hc), remanence (Mr), saturation magnetization (Ms) and sequarness ratio were directly extracted from hysteresis loops. Moreover, results showed that the magnetic characteristics are on the basis of each particle size as well as cation distribution. In addition, the antibacterial property of the prepared nanoparticles against S. aureus and E. coli found to be improved after substitution of Cu in Co ferrite matrix.

Impact of hydrogenation on the structural, dielectric and magnetic properties of La0.5Ca0.5MnO3

Impact of hydrogenation on the structural, dielectric and magnetic properties of half-doped La0.5Ca0.5MnO3 manganate have been investigated. Polycrystalline sample of La0.5Ca0.5MnO3 was prepared through solid state reaction at ~ 1300 °C. Subsequently, the prepared sample was annealed at 600 °C for 6 h in a continuous flow of hydrogen gas in a tubular reduction furnace. Single-phase orthorhombic structure of the hydrogenated La0.5Ca0.5MnO3 in the space group Pnma was confirmed by Rietveld refinement of PXRD and FTIR analysis. SEM micrographs revealed well resolved grains of ~ 2 μm in a good crystalline sample. Hydrogenated La0.5Ca0.5MnO3 showed a sharp optical absorption peak in the UV range with a bandgap energy of 4.96 eV. Hydrogenation of La0.5Ca0.5MnO3 leads to significant reduction in the magnitude of dielectric constant and tangent loss at room temperature. Paramagnetic character of La0.5Ca0.5MnO3 at 300 K is retained upon the hydrogenation but the low temperature magnetic properties get modified dramatically. Temperature and field dependent magnetization measurements showed that hydrogenated La0.5Ca0.5MnO3 undergoes paramagnetic to antiferromagnetic transition at TN = ~ 110 K and in a disordered magnetic phase below 50 K. Systematic enhancements in the magnitude of saturation magnetization (Ms), coercivity (Hc), remanence (Mr) and squareness ratio at 50 K and 20 K indicate for the coexistence of antiferromagnetic and weak ferromagnetic order due to competitive magnetic exchange interactions between Mn3+ and Mn4+ ions. This study shows that hydrogenation plays key role in the modification of dielectric and magnetic properties of La0.5Ca0.5MnO3.

Effects of La substitution on micromorphology, static magnetic properties and low ferromagnetic resonance linewidth of self-biased M-type Sr hexaferrites for high frequency application

M-type Sr (SrM) hexaferrites have been widely applied in millimetre/microwave ferrite devices such as circulators and isolators. SrM hexaferrites must exhibit a high remanence ratio Mr/Ms, a high anisotropy field Ha, and a low ferromagnetic resonance (FMR) linewidth ΔH to further develop millimetre/microwave equipment and devices with high frequencies, miniaturisation, and planarisation. However, it is difficult for M-type hexaferrite to simultaneously meet the requirements of high Mr/Ms, high Ha, and low ΔH, which are key to realising high-frequency self-biased ferrite devices. In this work, Ca–La–Co-substituted SrM ferrite was prepared, and the influence of La substitution on the micromorphology, static magnetic properties, and ΔH values of SrM hexaferrites is discussed in detail. The results demonstrated that as the La substitution content x increased from 0.0 to 0.5, the saturation magnetisation 4πMs and coercivity Hc initially increased, and then decreased. The Ha values of all samples were higher than 18 kOe. The FMR linewidth ΔH initially increases, and then decreased after reaching a maximum value at x = 0.2. The independent grain approximation theory was used to analyse the changing trend of the FMR linewidth. The results showed that the crystalline anisotropy linewidth ΔHa accounted for a larger proportion of the FMR linewidth than the porosity linewidth ΔHp. The sample with a La substitution content x of 0.3, exhibited the best performance (4πMs = 3915 Gs, 4πMr = 3387 Gs, Hc = 1818 Oe, Mr/Ms = 0.865, large Ha = 23.99 kOe, and ΔH = 1548 Oe at 58.8 GHz). The materials prepared in this research have significant potential for application in high-frequency self-biased devices and microwave engineering.

Structural and magnetic properties of nanocrystalline Ni0.7-xCuxCd0.3Fe2O4 prepared through Sol-gel method

A series of nanocrystalline Ni0.7-xCuxCd0.3Fe2O4 (0 ≤ x ≤ 0.5) are synthesized with the aid of an auto-combusted Sol-gel approach and then annealed at 700 °C. Rietveld refinement of X-ray diffraction (XRD) data reveals the cubic spinel phase of the samples with no impurity peaks. The average crystallite size of the materials is found to range from 18 to 29 nm and the mean particle's size is found between 51 and 69 nm. The variation in the lattice constant and volume of the unit cell with Cu content shows the increasing trend. The nanocrystalline nature of the investigated samples is revealed through Field emission electron microscopy (FESEM) and Transmission electron microscopy (TEM) analyses. The magnetic properties of the materials are characterized at room temperature by employing the Vibrating sample magnetometer (VSM) technique. The saturation magnetization and experimental magnetic moment are noticed to decrease up to 20% Cu substitution, thereafter both increase with Cu content. The observed M-H loops, the low values of remanence ratio (Mr/MS) and coercivity of the studied Ni-Cu-Cd materials suggest their soft ferrimagnetic behavior with the existence of multi-domain (MD) magnetic nanoparticles.

Controllable preparation and tunable magnetic anisotropy of amorphous La x M 1− x O y (M=Mn, Fe) nanowire arrays

Two La x Mn1−x O y (LM1, LM2) and three La x Fe1−x O y (LF1, LF2, LF3) amorphous nanowire arrays (NWAs) were prepared by chemical co-precipitation in anodic aluminium oxide (AAO) templates. The concentration of the reactant plays a crucial role in determining the morphology of La x Mn1−x O y NWAs. The AAO template was etched using a mixed nitrate solution that led to the exposure of La x Fe1−x O y NWAs on the template surface in the process of preparation, then the length of nanowires exposed to the template depends on the etching time. The LM2 NWAs exhibited obvious magnetic anisotropy after the template is almost eliminated by etching with NaOH solution, while the magnetic anisotropy of La x Fe1−x O y NWAs was manipulated by the length of nanowires outside the template. There is a regular change in the coercive force H c and remanence ratio M r/M s with increasing length of nanowires outside the template. Therefore, the nanoarray materials with tunable magnetic anisotropy were obtained by controllable preparation, and they can be applied to high-density magnetic memory nano-devices.

Effect of Mn3+ doping on the loss of Li0.37Zn0.26Ti0.12Fe2.37O4 ferrite

In this paper, a series of the gyromagnetic ferrite Li0.43Zn0.26Ti0.12MnxFe2.19−xO4 (x = 0–0.14) samples were prepared with the solid-phase reaction sintering method. The influences of Mn3+ doping on the microscopic morphology, ferromagnetic resonance linewidth, and microwave dielectric loss of LiZnTi ferrite were investigated. Doping in an appropriate amount of Mn3+ will reduce the saturation magnetization of the sample and the magnetocrystalline anisotropy of the ferrite. It also inhibited the generation of Fe2+ and reduced the porosity, to the benefit of keeping the ferromagnetic resonance linewidth (ΔH) of the material and microwave dielectric loss at a low level. The results suggested that when the doping amount of Mn3+ is 0.08, the ferromagnetic resonance linewidth of the material is 27.8 × 103 A m−1, the microwave dielectric loss tangent tanδ ε equals to 0.001, and the B-H hysteresis loop remanence ratio of the sample reaches 0.87, which is a beneficial application in lock-type microwave ferrite devices.

Tailoring the magnetic properties of galfenol film grown on single-crystal diamond

The thin film properties are often compromised but can be tuned by optimizing the growth parameters. Galfenol (FeGa), a magnetostrictive material can be used in MEMS technology particularly due to its large magnetostriction coefficient, low saturation and switching fields. Hence the fabrication of high quality FeGa thin film is important. Recently, the growth of FeGa thin film on semiconductor substrate offer a promising platform for micromechanical sensor. Here, we report the successful growth and high magnetic properties of FeGa thin film on single crystal diamond substrate. In order to obtain FeGa thin film with high soft magnetic properties, the variations of the growth parameters including working pressure, Ar flow rate, sputtering power and growth duration are investigated. It is shown that the microstructure, surface morphology, and magnetic properties of the FeGa thin film can be tailored by the growth parameters. Crystallized FeGa thin films with surface roughness less than 1 nm, low coercivity (Hc) of 26.2 Oe, and low saturation magnetization field (Hs) of 450 Oe and high remanence ratio (Mr/Ms) of 0.9 are obtained. The integration of FeGa thin film on diamond promotes the development of device based on magneto-strictive film integrated with semiconductors.

Electrochemical synthesis, structure characterization and magnetic properties of TbxFe7Co3 (x=0, 0.6, 0.8) nanowires

Highly ordered TbxFe7Co3 (x = 0, 0.6, 0.8) nanowires were synthesized in alumina templates by electrochemical deposition method. Here, the effects of Tb content and annealing treatment on the phase composition, morphology, crystalline structure and magnetic properties were investigated. The as-deposited Tb0Fe7Co3 nanowires comprise Fe7Co3 phase. While after adding Tb, the diffraction peaks slightly shift left, indicating the infiltration of Tb atoms into Fe7Co3 phase. After annealing, Tb0Fe7Co3 nanowires still consist of Fe7Co3 phase with a slight enhancement on coercivity. While the annealed nanowires with Tb doped present a complex phase composition containing Fe3Tb, Fe2Tb, Co3Tb, Co17Tb2, TbFeO3 and Fe2O3 phases distribute in the central portion, and Co0.72Fe0.28 at the nanowire outer walls. The annealed TbxFe7Co3 (x = 0.6, 0.8) nanowires show higher magnetic performance owing to the formation of hard magnetic phases, the interfacial elastic coupling between hard and soft phases and the coherent Fe3Tb/Co3Tb interface which restrain the domain wall motion. To be specific, the coercivity and remanence ratio of TbxFe7Co3 (x = 0.6, 0.8) nanowires significantly enhance with increasing Tb content.

Nickel-Doped Cobalt Zinc Ferrites Co0.8 – xNixZn0.2Fe2O4 (x = 0.0–0.56) by Solid-State Reaction: Synthesis and Characterization

Cobalt zinc ferrite and Ni-doped cobalt zinc ferrites Co0.8 – xNixZn0.2Fe2O4 (x = 0.0, 0.08, 0.16, 0.24, 0.32, 0.40, 0.48, 0.56) were prepared through low-cost solid-state reaction. The process and products were characterized by TG/DTA, XRD, SEM, FTIR, and VSM. For synthesized ferrites, the values of saturation magnetization, retentivity, coercivity, remanence ratio, and magnetic anisotropy are reported.

Nano‐Magnetite Aggregates in Red Soil on Low Magnetic Bedrock, Their Changes During Source‐Sink Transfer, and Implications for Paleoclimate Studies

AbstractSoil and lake sediments are important paleoclimate archives often forming a source‐sink setting. To better understand magnetic properties in such settings, we studied red soil on low‐magnetic bedrock and subrecent sediments of Caohai Lake (CL) in Heqing Basin, China. Red soil is the only important source material for the CL sediments, it is highly magnetic with susceptibilities (χ) of ~10−5 m3/kg. The red soil is dominated by pedogenic nano‐magnetite (~10–15 nm) arranged in aggregates of ~100 nm, with particle interaction that causes a wide effective grain size distribution in the superparamagnetic (SP) range tailing into stable single‐domain behavior. Transmission electron microscopy and broadband frequency χ(f) suggest partial disintegration of the aggregates and increased alteration of the nanoparticles to hematite during transfer of red soil material to CL. This shifts the domain state behavior to smaller effective magnetic grain sizes, resulting in lower χfd% and χ values, and a characteristic change of χ(f). The SP‐stable single‐domain distribution of the aggregates in red soil could be climate dependent, and the ratio of saturation remanence to χ is a potential bedrock‐specific paleoclimate proxy reflecting it. Magnetic properties of the CL sediments are controlled by an assemblage of nanoparticle aggregates and larger‐sized bedrock‐derived magnetite. The results challenge the validity of the previous paleoclimate interpretation from the 168‐m‐long Core‐HQ (900–30 ka) in Heqing Basin. Disintegration of aggregates could lead to SP behavior with low χfd% without extinction of individual magnetite nanoparticles, and the χfd%‐based assumption of SP magnetite dissolution may be wrong.

Effect of Fe doping on the magnetic properties of MnBi alloy

Structure and magnetic properties of Fe-doped MnBi alloy with a range of Fe concentrations were systematically investigated. The coercive field and saturation magnetization (Ms) were drastically changed according to the fabrication methods and Fe contents. The addition of Fe element could enhance the coercivity (Hc) of the MnBi-based alloy, and the increased Hc of 1.76 T was reached in the Mn55Bi45-Fe (15 wt%) ball-milled ribbon. Moreover, a high remanence ratio (Mr/Ms) of 97.0% was achieved in the Mn55Bi45-Fe (7.5 wt%) ball-milled ingot. In addition, as the concentration of Fe increases from 0 to 15 wt%, the Curie temperature (Tc) was increased from 635 to 652 K. This demonstrates that Fe-doped MnBi rare-earth permanent magnets could be a promising candidate for high-temperature applications. The relationship between magnetic properties and intermetallic lattice variations were discussed with precise Rietveld refinement analysis.

Temperature-dependent magnetic interactions and their effects on the macroscopic magnetism of CoFe2O4/La0.7Sr0.3MnO3 composites

Hard CoFe2O4/soft La0.7Sr0.3MnO3 polycrystalline composites with different mass ratios were chosen as studying objects, and the effects of interparticle dipolar interaction (IPDI), exchange coupling (EC) and magnetic anisotropy K on the saturation magnetization Ms, remanence ratio Mr/Ms and coercivity Hc in different temperature regions were investigated. The importance that IPDI, EC and K affects the magnetic property differs in different temperature region. The temperature T dependent Ms showed that the IPDI dominates Ms below 250 K but the EC does above 250 K where Ms follows the Bloch T3/2 law. K monotonically decreases with increasing T, however, at a certain T, K does not decrease monotonically, as is commonly believed, with increasing the ratio of La0.7Sr0.3MnO3. In the temperature region 10 K–300 K, Mr/Ms and Hc of CoFe2O4 and composites monotonously decrease with increasing T, while they slightly increase above 300 K. At T = 10 K, the EC occurring inside the domain wall and among particles was detected, and the inter-particle EC disappears at 250 K and 390 K. Further analyses revealed that in the temperature region 10 K–390 K the magnetic grain size increases with increasing T, but it is much smaller than the particle size. The magnetic moments are ordered just within the region of 2–3 domains, but they are disordered in a larger scale inside the particle. These results provided the experimental reference for the practical applications of bi-magnetic materials.

Insight into the Property Enhancement Mechanism of Chemically Prepared Multi-Main-Phase (Nd,Ce)2Fe14B.

Nd2Fe14B has attracted intensive attention because of its excellent magnetic properties since 1980s. However, large demands for the expensive rare earth (mainly refers to Nd/Pr/Dy) limit its wider applications. Investigations of Ce-doped Nd2Fe14B have been attempted recently and multi-main-phase (MMP) (Nd,Ce)2Fe14B provides a promising way for the preparation of high-performance Ce-doped permanent magnets even though the inner mechanism has not been absolutely understood. We synthesized Ce-doped Nd2Fe14B nanostructures by the chemical method and successfully realized the obvious property enhancement of the MMP sample compared with that of the single-main-phase one. The coercivity of the MMP nanostructures is nearly 4.5 kOe with a remanence ratio of 0.36 before magnetic orientation, which is much larger than that of the SMP sample (1.7 kOe and 0.21), respectively. The property enhancement mechanism of the MMP sample analyzed mainly by first-order reversal curves could be concluded in three aspects: first, the content of α-Fe will be decreased; hence, the difficulty of the magnetic nucleation is increased. Second, the exchange coupling effect between the adjacent magnetic structures will be strengthened significantly. Last, the grain boundary phases with various magnetic features are formed, enhancing the magnetic pinning effect and specially tuning the inner interactions. This work is helpful for the deeper understanding of the property enhancement mechanism in MMP nanomagnets and provides an instructive way for the effective design and preparation of high-performance MMP Ce-doped Nd2Fe14B nanomagnets.

FeCo Nanowire–Strontium Ferrite Powder Composites for Permanent Magnets with High-Energy Products

Due to the issues associated with rare-earth elements, there arises a strong need for magnets with properties between those of ferrites and rare-earth magnets that could substitute the latter in selected applications. Here, we produce a high remanent magnetization composite bonded magnet by mixing FeCo nanowire powders with hexaferrite particles. In the first step, metallic nanowires with diameters between 30 and 100 nm and length of at least 2 μm are fabricated by electrodeposition. The oriented as-synthesized nanowires show remanence ratios above 0.76 and coercivities above 199 kA/m and resist core oxidation up to 300 °C due to the existence of a >8 nm thin oxide passivating shell. In the second step, a composite powder is fabricated by mixing the nanowires with hexaferrite particles. After the optimal nanowire diameter and composite composition are selected, a bonded magnet is produced. The resulting magnet presents a 20% increase in remanence and an enhancement of the energy product of 48% with respect to a pure hexaferrite (strontium ferrite) magnet. These results put nanowire–ferrite composites at the forefront as candidate materials for alternative magnets for substitution of rare earths in applications that operate with moderate magnet performance.

Synthesis and characterization of magnetically separable Zn1-xCoxFeMnO4 nanoferrites as highly efficient photocatalyst for degradation of dye under solar light irradiation

Cobalt doped magnetically separable Zn1-xCoxFeMnO4 (x = 0.0, 0.25, 0.50, 0.75, 1.0) nanoparticles of ferrite were synthesized using auto-combustion process of sol-gel utilizing glycine as a fuel. The powder XRD and Rietveld refinement studies showed that all of the samples developed a single-phase cubic spinel system. The morphological investigations demonstrate the sphere-like nanostructures, which get distorted after an increase in the concentration of cobalt. A transformation from superparamagnetic activity to ferrimagnetic character has been reported with the introduction of Co2+. As synthesized ferrite nanoparticles have demonstrated an improvement in coercivity with lower density magnetization with reduced crystallite size. A rise in the remanence ratio were observed with the Co2+ content. The optical characterization shows a blue shift in the band gap with increase of Co2+. Considering the band structure in the visible region, the photocatalytic activity of as-synthesized Zn1-xCoxFeMnO4 photocatalysts for degradation of methylene blue under natural sunlight was investigated. The Zn0.25Co0.75MnFeO4 ferrite demonstrated more than 99% degradation of MB dye within 20 min. The effect of catalyst loading, pH, and stability of photocatalyst were studied.

Correlation between pass-through flux of cobalt target and microstructure and magnetic properties of sputtered thin films

Cobalt thin films were deposited on silicon substrates by magnetron sputtering two commercial cobalt targets with different pass-through fluxes (PTFs). The influences of PTF on the magnetic properties of sputtered thin films were investigated. The results indicate that under the same sputtering conditions, cobalt thin film deposited by Co target with high PTF (84.21%) has lower remanence ratio (0.65), while cobalt thin film prepared by Co target with low PTF (69.13%) has higher remanence ratio (0.87). Through introducing an external magnetic field parallel to the film surface during sputtering processes, both the remanence ratios of cobalt thin films prepared by the two targets can be enhanced to approach 1. High-resolution transmission electron microscopy (HRTEM) images show that in the absence of the external magnetic field during sputtering, cobalt thin film deposited by the target with high PTF is randomly oriented in crystallographic orientations, which is due to that Co atoms have no enough time to migrate and diffuse on substrate and the atomic stacking is disordered. It is worth mentioning that crystallographic orientations of cobalt thin film deposited by target with low PTF are relatively consistent, resulting in relatively higher remanence ratio. In addition, HRTEM analysis indicates that the external magnetic field during sputtering drives the Co grains to arrange in a regular order with (002) orientation, leading to the improvement in remanence ratios.

Magneto-Impedance in Co35Fe65/Cu/Co35Fe65 Single and Bi-layer Thin Films

The magneto-impedance response in Co35Fe65/Cu/Co35Fe65 thin film magneto-impedance cells deposited by the thermal evaporation method has been studied with single and bilayer structures at the substrate temperature 300 K and 150 K. While the thin film deposited at 300 K has BCC structure, the amorphous character is dominant for 150 K deposited ones. Entire films show soft magnetic behavior with high saturation magnetization (MS) and low coercive field (HC). Bilayer thin film structure reveals higher magneto-impedance values than single-layer thin films. The relation between the magneto-impedance effect and layered structure is discussed in terms of structural growing mechanism and scattering effect. The highest magneto-impedance sensitivity (η) 37%/Oe is observed for the Co35Fe65/Cu/Co35Fe65 bilayer thin film. The HC and remanence ratio (MR/MS) values for single layer at 300 K, single and bilayer cells at 150 K are measured as 51, 158 and 253 Oe—0.48, 0.78, and 0.80, respectively. When η with the Soliton wave model is compared with the sample at room temperature, an increase of over 1700% is observed. The difference between the classical growing method at 300 K and the Soliton wave model at 150 K is the evidence of the logic of the work performed and its accuracy. The relatively high sensitivity is connected with interlayer usage and low temperature-smaller particle size in Soliton model growth. The observed findings are of practical importance to develop future technological magnetic sensor applications with high sensitivity.

Influence of cooling rate on the magnetic properties of Hf–Co–Fe–B melt-spun alloy

In the present work, Hf2Co9.5Fe1.5B melt-spun (MS) alloy is synthesized by employing melt spinning at different wheel speeds viz. 16, 20, 24 and 28 m/s to study the effect of quenching on the thermal, structural, microstructural and magnetic properties. The phase purity and the magnetic behaviour of the MS ribbons are highly dependent on the cooling rate that is controlled by altering the tangential wheel speed during melt spinning. Cooling rates are found to increase with increase in wheel speed with a concurrent decrease in the ribbon thickness owing to the increase in the heat transfer coefficient at the thermal contact. The best phase purity and the magnetic properties are found for the ribbons melt-spun at 28 m/s. This could be attributed to the high cooling rate 2.3 × 107 K/s causing crystallization of hard magnetic Hf2Co11B phase leading to refined grain size. A maximum coercivity (HC) ~ 2.18 kOe, remanence ratio (Mr/Ms) ~ 0.61, an appreciable magnetic energy product (BH)max ~ 3 MGOe observed in the MS ribbons at 28 m/s illustrates the critical role of wheel speed in the enhancement of permanent magnetic properties in a single-step without annealing. XRD patterns reveal that the alloy was found to crystallize in orthorhombic Hf2Co11B in addition to cubic Co and Hf6Co23 phases. FE-SEM analysis is carried out to realize the grain morphology and phase identification. The current work exhibits the efficacy of rapid quenching by melt spinning as an effective technique in the development of high-performance Hf2Co9.5Fe1.5B rare-earth-free permanent magnet alloy for future energy applications in the high-temperature regime.

Effect of Cu2+ on structural, elastic and magnetic properties of nanostructured Mn–Zn ferrite prepared by a sol-gel auto-combustion method

The effect of Cu2+ substitution on the structural, elastic and magnetic properties of Mn0·50Zn0.50-xCuxFe2O4 (x = 0.00–0.25 and x changes at a step of 0.05) has been investigated. The compositions were made utilizing the Sol-Gel auto-ignition procedure and the X-ray diffraction (XRD) analysis confirmed the purity of the phase. Decreasing trends have been observed in the lattice constant, bulk density and Poisson's ratio but average grain size, theoretical density and porosity increases with the increasing concentration of Cu2+. Nano metric crystallite sizes have been estimated from FWHM of the X-ray diffraction peaks. Cation distribution in the present study was assessed by the XRD data. Site occupancy of cations helps to understand the variation in magnetic properties and also explains the change taking place in saturation induction, remanence induction and coercivity. The initial permeability increases with the increasing Cu2+ concentration up to x = 0.20 and above this x value it decreases. Observed variations of initial permeability have been clarified based on the increment of average grain size, which also has been conformed from optical micrographs. Saturation induction, coercivity, remanance, and squareness ratio have been considered as a component of Cu2+ content from theB−H loops of the compositions. Possible explanations for the perceived structural, elastic and magnetic behavior with Cu2+ substitutions are discussed.