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Measurement of the thermoelectric power of lead sulphide

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Abstract

The thermoelectric power of natural specimens of lead sulphide crystals has been measured between room temperature and 700° K. Specimens which are of then-type remain as such throughout the temperature range. Thep-type specimens, however, show an initial small rise followed by a gradual decrease and a subsequent change of sign ata temperature which, in some specimens, is well defined. Further increase of temperature results in a negative extremum. From this stage onwards there seems to develop a common behaviour for both types of specimens. Some crystals which were initially of thep-type changed over to then-type and remained as such throughout subsequent investigation. Among the crystals one showed a metallic conduction and an extraordinary large thermoelectric power.

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Authors and Affiliations

  1. Physics Department, Faculty of Science, Alexandria University, Alexandria, Egypt

    Ali Ali Arafa, Ibrahim Sayed Shafie & Fathi Sultan Ahmed Sultan

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  1. Ali Ali Arafa
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  2. Ibrahim Sayed Shafie
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  3. Fathi Sultan Ahmed Sultan
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Arafa, A.A., Shafie, I.S. & Ahmed Sultan, F.S. Measurement of the thermoelectric power of lead sulphide. Journal of Applied Mathematics and Physics (ZAMP) 7, 256–264 (1956). https://doi.org/10.1007/BF02044472

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  • DOI: https://doi.org/10.1007/BF02044472

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