Author/Authors :
Dantas، نويسنده , , Noelio Oliveira and Silva، نويسنده , , Alessandra dos Santos and Ayta، نويسنده , , Walter Elias Feria and Silva، نويسنده , , Sebastiمo William da and Morais، نويسنده , , Paulo César de and Pereira-da-Silva، نويسنده , , Marcelo A. and Marques، نويسنده , , Gilmar Eugênio، نويسنده ,
Abstract :
Zn1−xMnxTe dilute magnetic nanocrystals (NCs) were synthesized by fusion method in a glass template and annealed post-growth. Magnetism and quantum confinement of incorporated Mn-ions were confirmed by magnetic force microscopy (MFM), Raman scattering (RS) and electron paramagnetic resonance (EPR). A blueshift in the RS spectra were clear signatures of Mn2+ incorporation in the dot structure which were monitored as a function of increasing doping concentration, x. MFM images strongly indicated the formation of Zn1−xMnxTe magnetic phases in the glass system. The EPR spectra showed six lines associated to the S = 5/2 spin half filled d-state, characteristic of Mn2+ ions.
