|Affiliations:||Mathematical Institute of the Serbian Academy of Sciences and Arts||Title:||Photoacoustic properties of single crystal PbTe(Ni)||Journal:||Science of Sintering||Volume:||39||Issue:||2||First page:||161||Last page:||167||Issue Date:||1-Dec-2007||Rank:||M22||ISSN:||0350-820X||DOI:||10.2298/SOS0702161L||Abstract:||
Single crystals of PbTe(Ni) were investigated by the photoacoustic method. They were produced using the Bridgeman method. These crystals have a sodium chloride cubic lattice and could be cleaved paralel to the plane orientation (200). They were of the n-type. Phase and amplitude photoacoustic spectra were measured using a transmision detection configuration set-up. Photoacoustic (PA) spectra (single and normalized) were numerically analyzed using the Rosencwaig-Gersho model. Thermal diffusivity and some electron-transport parameters were determined. These results were compared with existing results for pure single crystal PbTe. Thermal difusivity of PbTe(Ni) is a bit higher than the thermal difusivity of pure PbTe. This is the consequence of a decreasing concentration of the majority free carriers in the doped alloy.
|Keywords:||Minority free carrier mobility | Photoacoustic method | Thermal diffusivity||Publisher:||Serbian Academy of Sciences and Arts|
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