Morphology in semimagnetic Pb1-xMnxSe nanocrystals: Thermal annealing effects

作者：Dantas N O^*; Silva R S; Pelegrini F; Marques G E

来源：Applied Physics Letters, 2009, 94(26): 263103.

DOI：10.1063/1.3159842

• annealing
• atomic force microscopy
• exchange interactions (electron)
• IV-VI semiconductors
• lead compounds
• manganese compounds
• nanostructured materials
• nanotechnology
• paramagnetic resonance
• semimagnetic semiconductors
• X-ray diffraction

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.

• 出版日期2009-6-29