Ferromagnetic Mn-doped Si0.3Ge0.7 nanodots self-assembled on Si(100)
2012
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.
Keywords:
- Energy filtered transmission electron microscopy
- Nuclear magnetic resonance
- Nanodot
- Crystallite
- High-resolution transmission electron microscopy
- Crystallography
- Physics
- Transmission electron microscopy
- Electron diffraction
- Extended X-ray absorption fine structure
- Reflection high-energy electron diffraction
- Ferromagnetism
- Curie temperature
- Condensed matter physics
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