Author:
Sariel J.,Dahan I.,Gelbstein Y.
Abstract
Rhombohedral-cubic transformation in Bi2Te3 doped-Pb1−xGexTe alloys is presented. Samples of Bi2Te3 doped Pb1−xGexTe 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 Ge0.74Pb3.26Te4.
Publisher
Cambridge University Press (CUP)
Subject
Condensed Matter Physics,Instrumentation,General Materials Science,Radiation
Reference3 articles.
1. ICDD. (2005). “Powder diffraction file,” International Centre for Diffraction Data, edited by Frank McClune, 12 Campus Boulevard, Newtown Square, PA 19073–3272.
2. Phase relations and transformations in the system PbTe-GeTe
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