Densely packed epitaxial Mn-doped Si0.3Ge0.7 nanodots self-assembled on Si(100) have been obtained. Their structural properties were studied using reflection high-energy electron diffraction, energy dispersive x-ray diffraction, atomic force microscopy, extended x-ray absorption fine structure measurements and high-resolution transmission electron microscopy. Mn5Ge1Si2 crystallites embedded in Si0.3Ge0.7 were found. They exhibit a ferromagnetic behaviour with a Curie temperature of about 225 K.
Ferromagnetic Mn-doped Si0.3Ge0.7 nanodots self-assembled on Si(100)
P De Padova;C Quaresima;B Paci;A Generosi;V Rossi Albertini;A Cricenti;C Ottaviani;M Luce;A M Testa;D Peddis;D Fiorani;F d'Acapito
2012
Abstract
Densely packed epitaxial Mn-doped Si0.3Ge0.7 nanodots self-assembled on Si(100) have been obtained. Their structural properties were studied using reflection high-energy electron diffraction, energy dispersive x-ray diffraction, atomic force microscopy, extended x-ray absorption fine structure measurements and high-resolution transmission electron microscopy. Mn5Ge1Si2 crystallites embedded in Si0.3Ge0.7 were found. They exhibit a ferromagnetic behaviour with a Curie temperature of about 225 K.File in questo prodotto:
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