Structural, optical and magnetic properties of polycrystalline Zn1−xMnxO ceramics

► Detailed investigations on Zn1−xMnxO ceramics were carried out. ► The phase separation in structure was found at a value of x=0.4. ► Mn2+ and Mn3+ ions in Zn1−xMnxO ceramics can be responsible for paramagnetism.