| Autor: |
Luković D., Nikolić P.M., Vujatović S., Savić S., Urošević D. |
| Jazyk: |
angličtina |
| Rok vydání: |
2007 |
| Předmět: |
|
| Zdroj: |
Science of Sintering, Vol 39, Iss 2, Pp 161-167 (2007) |
| Druh dokumentu: |
article |
| ISSN: |
0350-820X |
| DOI: |
10.2298/SOS0702161L |
| Popis: |
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. . |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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