Synthesis, structural study and transport properties of GaSb-CrSb eutectic composite
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RAHIMOV, R., KAZIMOV, M., MAMMADOV, I., ARASLY, D., KHALILOVA, A.. Synthesis, structural study and transport properties of GaSb-CrSb eutectic composite. In: Materials Science and Condensed Matter Physics, Ed. 7, 16-19 septembrie 2014, Chișinău. Chișinău, Republica Moldova: Institutul de Fizică Aplicată, 2014, Editia 7, p. 102.
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Materials Science and Condensed Matter Physics
Editia 7, 2014
Conferința "Materials Science and Condensed Matter Physics"
7, Chișinău, Moldova, 16-19 septembrie 2014

Synthesis, structural study and transport properties of GaSb-CrSb eutectic composite


Pag. 102-102

Rahimov R., Kazimov M., Mammadov I., Arasly D., Khalilova A.
 
Institute of Physics, Azerbaijan National Academy of Sciences
 
 
Disponibil în IBN: 27 februarie 2019


Rezumat

GaSb-CrSb eutectic composite is synthesized by fusing of 86.5 wt % GaSb with 13.5 wt % CrSb and by the vertical Bridgman method in the strong realization requirements of crystallization front is perpendicular to the solidification direction at different crystallization rates. X-ray diffraction patterns of samples have been obtained by using an Advance - D8 diffractometer with Cu-Kα radiation (λ=1.5418Ǻ), over range of 2θ=10 to 90°. XRD analyse show that the obtained composites present two phase system, so that the observed intense peaks are related to the GaSb matrix and weaknesses - to the CrSb inclusions (figure). The microstructure study of composites by using the metallographic and scanning electron microscopy (Quanta 250 FEG) appeared that the needle-shaped metallic phases CrSb with 30’50μ m length, 1.4μm diameter and 8x104mm-2 densities are uniformly distributed and oriented in the solidification direction within the GaSb matrix. The elemental composition of the matrix and metallic inclusions has been determined by the EDX method using Oxford Inca X-act - EDS system. X-rays characteristic were generated during EDX analysis. The X-ray spectra have been obtained from the inclusions along the lateral direction and matrix phases. The temperature dependence of the Holl coefficient, thermopower, electrical conductivity and magnetoresistance at the mutual directions of current, magnetic field and inclusions between of 80K and 400K have been investigated. Samples had p-type conductivity with 2x1018sm-3 carriers concentration at room temperature. On the temperature dependence of kinetic coefficient exhibit anisotropy, whose magnitude decreases with increasing temperature, that connect with the shortcircuited effect of metallic inclusions.