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Morphology in semimagnetic nanocrystals: Thermal annealing effects
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View: Figures


Image of FIG. 1.
FIG. 1.

Room-temperature OA spectrum as a function of the wavelength: for a (i) glass matrix; (ii) glass matrix doped with Mn (SNABP: ), and NCs (SNABP: ) for (iii) ; (iv) ; (v) ; and (vi) . Energy resonances are shown near the peaks.

Image of FIG. 2.
FIG. 2.

Left panel: AFM images of NCs showing size distribution for concentrations below 5% for: (a) SNABP: PbSe; (b) SNABP: . Right panel: 3D AFM images illustrating the morphologies of PbSe and NCs.

Image of FIG. 3.
FIG. 3.

(a) XRD measurements of PbSe (lower line) and (upper line) NCs embedded in glass matrix. The effects associated to the incorporation of ions into PbSe NCs are seen as an intensity increase (left panel) and a shift to higher diffraction angle (right panel) of the (111) peak. Probably, the diffusion is enhanced along the (111) direction.

Image of FIG. 4.
FIG. 4.

Left panel: EPR spectra for pure PbSe and for semimagnetic NCs, for with , , and . In each panel, lines show the difference between undoped and doped PbSe samples. Right panel: EPR spectra of NCs measured in the -band and at room temperature and the computed EPR spectra obtained by a summation of two spectra with and 7.9 mT, corresponding to sites inside labeled as and on the surfaces labeled as of NCs, for a system with , , , , and .


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Morphology in semimagnetic Pb1−xMnxSe nanocrystals: Thermal annealing effects