Authors: Luković, Danijela
Nikolić, Pantelija
Vujatović, Stevan
Savić, Slavica
Urošević, Dragan 
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
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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