Surfactant-induced enhanced room temperature ferromagnetism in Zn0.96Mn0.03Li0.01O nanoparticles : Prepared by solid-state pyrolitic reaction

• We report the synthesis of nanoparticles of Zn0.96Mn0.03Li0.01O by a low-temperature solid-state pyrolitic reaction, followed by a surfactant-assisted calcination at 400 degrees C. The X-ray diffraction and transmission electron microscopy analyses showed the formation of impurity free nanocrystals of Mn doped Li co-cloped ZnO with wurtzite structure. XPS data revealed that Mn exists in + 2 oxidation state. DC magnetization measurements as a function of field and temperature showed enhanced room temperature ferromagnetism for the surfactant-treated Zn0:96Mn0.03Li0.01O. FMR signal observed in the EPR spectrum further confirmed its ferromagnetic nature.

Nyckelord

DC magnetization

transmission electron microscopy

Mn doped Li

co-doped ZnO nanocrystals

dilute magnetic

semiconductor

mn-doped zno

thin-films

magnetic semiconductor

single-crystals

quantum dots

nanocrystals

growth

oxides

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)