Mn doped ZnO films were prepared on Si (100) substrates using sol-gel method. The prepared films were
annealed at 550^ºC for decomposition and oxidation of the precursors. XRD analysis revealed the presence of
ZnMnO hexagonal wurtzite phase along with the presence of small quantity of ZnMn₂O₃ secondary phase and poor crystalline nature. The 2D, 3D views of magnetic domains and domain profiles were obtained using magnetic force microscopy at room temperature. Rectangular shaped domains with an average size of 4.16 nm were observed. Magnetic moment measurement as a function of magnetic field was measured using superconducting quantum interference device (SQUID) magnetometry at room temperature. The result showed the ferromagnetic hysteresis loop with a curie temperature higher than 300 K.