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 | 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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