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Polycrystalline LaFe0.9Ni0.1O3 is prepared by the solid state reactions route. X-ray diffraction is used to analyse the phase purity of the compound. Impedance spectra of LaFe0.9Ni0.1O3 over the frequency range of 1 Hz to 10 MHz are investigated at different temperatures from 100 to 373 K. Two relaxation processes with different relaxation times are observed at each temperature. An equivalent circuit model (R1Q1) (R2Q2) is applied to explore the physical parameters associated with grains and grain boundaries. Frequency and temperature dependence of the relaxation processes and extracted parameters are discussed in terms of hopping between Fe+4 and Fe+3 and trap state scattering at grain boundaries. A change in conduction mechanism from variable range hopping to adiabatic small polaron hopping at 296 K is evident from these results. Traps are active below 296 K in capturing the charge.

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The microstructure and cation distribution of Co1−xMnxFe2O4 were investigated and correlated with their electrical properties. Here, Mn substitution enhances the resistive properties which make them favorable for high-frequency applications.

Polycrystalline LaFe1−x Ni x O3 (x = 0.0, 0.1, 0.3 and 0.5) oxides are prepared by a solid-state reaction method. In order to explore the delocalization effects of disorder induced by Ni substitution, dependence of the ac electrical properties of the synthesized composition is investigated in a wide temperature (77–300 K) and frequency (1–10 MHz) range by impedance spectroscopy. Room temperature near-edge x-ray absorption fine structure experiment at O K edge is performed to probe the unoccupied density of states. Grain boundaries play a dominant role in determining the resistive properties of the series. These systems are semiconducting and the origin of their semiconducting nature changes with Ni doping. At low doping levels (x ⩽ 0.3) the semiconducting nature is dominated by an increase in mobility of the localized charge carriers, which hop between their localized states. For x = 0.5, the semiconducting nature is determined by an increase in carrier density. These results are explained in terms of a metallic conduction band formed by the hybridization of O 2p and Ni 3d orbitals.

We have investigated the electrical and magnetic response of the sol–gel synthesized Zn x Ni1−x Fe2O4 (x = 0.0, 0.5 and 1) nanoparticles. The ratio of A-site sextet intensity to that of B-site sextet is featured in terms of divergence in coordination of Fe3+ ions from four-fold (A-site) to six-fold (B-site). Canted spin structure and weakening of Fe3+(A)–Fe3+(B) interactions at the surface of the nanoparticles assign the reduced value of room temperature magnetization in these nanoparticles. Shift of the blocking temperature with Zn content is ascribed to the change in the magnetic anisotropy. Colossal resistivity and reduced dielectric constant are discussed on the basis of dangling bond, superparamagnetic character, canted spin structure and polarizability of the cations. Diminished tangent loss is stipulated in terms of decrease in magnetocrystalline anisotropy and collapse of long-range magnetic order. We report colossal resistivity (i.e. 3.15 × 109 Ω cm), reduced dielectric constant (3.97) and diminished tangent loss (0.07) for Ni0.5Zn0.5Fe2O4 nanoparticles.

This study investigates why some employees intend to leave their jobs when facing conflict between family responsibilities and job routines. The present study also reveals the moderating role of on-the-job embeddedness between role conflict and intention to leave the job. Drawing on conservation of resources theory, the paper investigates the buffering effect of the three on-the-job embeddedness components (fit, links, and sacrifice). Data were collected from banking officers because most of the employees have to face role conflict between family and job responsibilities, as banking is considered among the most stressful jobs. Collected data were analyzed by applying structural equation modeling. Results indicate that the role conflict significantly influences intention to leave the job. Furthermore, the study shows that on-the-job embeddedness moderates the relationship between role conflict and intention to leave. The results suggest that organizations can reduce turnover intention during times of work and life conflict by developing employee on-the-job embeddedness. This study provides some insights to managers on why many employees leave their jobs and how to overcome this problem. Management should also offer extra and available resources in periods of greater tension to minimize early thinking regarding quitting.