APPLICATION OF THE PHOTOACOUSTIC METHOD FOR CHARACTERIZATION OF NATURAL GALENA (PBS)
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dc.contributor.author | Nikolic P.M. | |
dc.contributor.author | Duric S. | |
dc.contributor.author | Todorovic D.M. | |
dc.contributor.author | Vasiljevic-Radovic D. | |
dc.contributor.author | Blagojevic V. | |
dc.contributor.author | Mihajlovic P. | |
dc.contributor.author | Elazar J. | |
dc.contributor.author | Radulovic K.T. | |
dc.contributor.author | Bojicic A.I. | |
dc.contributor.author | Urosevic D. | |
dc.date.accessioned | 2021-03-17T05:23:33Z | |
dc.date.available | 2021-03-17T05:23:33Z | |
dc.date.issued | 2001 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=872427 | |
dc.identifier.citation | Physics and Chemistry of Minerals, 2001, 28, 1, 44-51 | |
dc.identifier.issn | 0342-1791 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/26849 | |
dc.description.abstract | Electron transport properties of single crystal and polycrystalline natural mineral galena (PbS) samples from the Trepča mine, Yugoslavia, were determined using the photoacoustic frequency transmission technique. Their thermal diffusivity (DT≈0.16 × 10−5 m2 s−1), the coefficient of diffusion (D between 0.15×10−2 0.16×10−2 m2 s−1) and lifetime of the excess carrier (τ≈35 μs and the front and rear recombination velocity (sg≈65.5 m s−1 and sb≈66.4 m s−1, respectively), were calculated by comparing the experimental results and the theoretical photoacoustic amplitude and phase signals. The lattice parameter obtained by X-ray work was a =5.936 Å. The free carrier concentration of these single-crystal samples was measured using the Hall method (N = 3×1018 cm−3). Measurements of the optical reflectivity of the same samples, as a function of wavelength, in the infrared and far infrared ranges, were performed. In the far infrared range a free electron plasma frequency was observed and numerically analyzed, using the least-squares fitting procedure. The values of optical parameters were calculated and the value of the free carrier concentration obtained by the Hall method was confirmed. | |
dc.subject | NATURAL GALENA | |
dc.subject | PHOTOACOUSTIC METHOD | |
dc.subject | THERMAL DIFFUSIVITY | |
dc.subject | ELECTRON TRANSPORT PROPERTIES | |
dc.subject | OPTICAL PROPERTIES | |
dc.title | APPLICATION OF THE PHOTOACOUSTIC METHOD FOR CHARACTERIZATION OF NATURAL GALENA (PBS) | |
dc.type | Статья |
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