Abstract :
We report on the observation of room-temperature ferromagnetism in epitaxial (Zn,Mn)O films grown by a pulsed-laser
deposition technique using high-density targets. The X-ray, microscopic, spectroscopic and magnetic properties of target
material containing 6 at.% of Mn and films were compared. The target shows the presence of large clusters exhibiting
paramagnetic behavior. However, ferromagnetic properties were observed in (Zn,Mn)O films grown at a substrate temperature
of 500 8C and with an oxygen partial pressure of 1 mTorr. Although, crystalline quality of the film improves with increasing
substrate temperature, the ferromagnetism becomes weaker
