Morphology in semimagnetic Pb1-xMnxSe nanocrystals: Thermal annealing effects

Dantas, N. O.; Silva, R. S.; Pelegrini, F.; Marques, G. E.
June 2009
Applied Physics Letters;6/29/2009, Vol. 94 Issue 26, p263103
Academic Journal
Samples of Pb1-xMnxSe nanocrystals were synthesized by fusion method and characterized by optical absorption, atomic force microscopy, x-ray diffraction, and electron paramagnetic resonance (EPR) techniques. Effects of Mn2+ ion incorporation into PbSe nanocrystals are manifested by well resolved optical spectra for different concentrations of Mn. The EPR spectra of as grown and thermal annealed Pb1-xMnxSe samples show that the magnetic properties of these Mn-doped nanocrystals can be tuned by thermal processes using different annealing times.


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