A study of magnetic, specific heat and resistivity properties in Ca0.85Eu0.15MnO3 around the phase transition temperature

• Magnetic, specific heat and resistivity properties have been investigated in electron doped polycrystalline Ca0.85Eu0.15MnO3 (CEMO) manganite.
• It shows PM–FM phase transition at TC=122 K.
• The second-order phase transition has been observed from the Arrott plot.
• The magnetization data have been correlated with the specific heat data at the PM–FM phase transition.

Correlation between the magnetic, specific heat and resistivity properties around the phase transition temperature has been investigated in electron doped polycrystalline Ca0.85Eu0.15MnO3 (CEMO) manganite. The magnetic data show the existence of the magnetic phase transition around TC=122 K under cooling from the paramagnetic (PM) to ferromagnetic (FM) state. The critical exponents determined from the Arrott plot are higher than the value expected from the Heisenberg model because of short range ferromagnetic ordering in the sample. The resistivity sharply rises at the magnetic phase transition temperature. Specific heat measurement exhibits a distinct peak near TC that can be interpreted in terms of the magnetic phase transition.