Synthesis of Co1.5Fe1.5O4 spinel ferrite with high magnetic squareness and study its magnetic property by annealing the chemical routed sample at different temperatures

► Ferromagnetism is studied as the function of annealing temperature. ► Ferromagnetic properties depend on single and multi-domain nature of grains. ► Material shows room temperature soft ferromagnetism and high squareness. ► Ferromagnetic parameters are relevant for magnetic sensor and data storage medium.