Magnetic Structure and Magnetism of Divalent Zn Doped NdMnO3

Structural and magnetic properties of pure and Zn doped NdMnO3 manganites have been investigated using neutron diffraction and ac susceptibility measurements. The partial replacement of Mn3+ by Zn results in the modification in the magnetic behavior of NdMnO3 at low temperature. Temperature dependent ac susceptibility measurements show a broad hump like behavior around similar to 60 K suggesting the presence of antiferromagnetic ordering. Temperature dependent ND studies on NdMn0.95Zn0.05O3 sample revealed the evolution of antiferromagnetic order around similar to 75 K, evident from the emergence of (010) Bragg reflection. The intensities of (101) and (111) Bragg peaks in ND patterns increases below 75K which has been attributed to the presence of ferromagnetic (FM) component, getting enhanced at low temperature. Results of the temperature dependent ND and ac susceptibility measurements on NdMn0.95Zn0.05O3 have been discussed in detail.