One of the most interesting questions, that has been investigated in recent years in nano materials, is the stability of crystallographic phases and resulting physical properties on reducing the size of nanoparticles /crystallites. The parameters like pressure, temperature, carrier control by doping and even size reduction can tune the physical properties of functional oxides, particularly those belonging to perovskite system. Because of their unique one-dimensional like structure and size effects, the nanowires of functional oxides exhibit many novel physical properties, which are different from their bulk counterparts. The magnetic nanowires thus form a new class of magnetic materials. To understand the magnetic phase coexistence as well as crystallographic phase coexistence it is required to do neutron powder diffraction measurement. We propose neutron diffraction study of the LSMO nanowires by neutron powder diffraction.For this we request 1 day of neutron beam time on D20.