Abstract
Rhombohedral-cubic transformation in Bi2 Te3 doped- Pb1-x Gex Te alloys is presented. Samples of Bi2 Te3 doped Pb1-x Gex Te were prepared by powder metallurgy approach. These powder samples were examined by high-temperature X-ray diffraction (XRD) and scanning electron microscopy/energy dispersive spectroscopy. A bulk (pressed powder) cylindrical specimen was used for dilatometery characterizations. According to the XRD examinations it seems that upon increasing the temperatures a continuous transformation occurs from the rhombohedral to the cubic phase, accompanied by the formation of a small amount of the phase Ge0.74 Pb3.26 Te4.
| Original language | English |
|---|---|
| Pages (from-to) | 137-140 |
| Number of pages | 4 |
| Journal | Powder Diffraction |
| Volume | 23 |
| Issue number | 2 |
| DOIs | |
| State | Published - 10 Jun 2008 |
Keywords
- Dilatometry
- EDS
- HTXRD
- Phase transition
- SEM
- Tellurium alloys
ASJC Scopus subject areas
- Radiation
- General Materials Science
- Instrumentation
- Condensed Matter Physics
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