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Information Journal Paper

Title

ANOMALY IN THE SPECIFIC HEAT OF LEAD TELLURIDES

Pages

  1-5

Abstract

 SPECIFIC HEATs of two types of lead tellurides, namely p-type Pb1-x Snx Te (x=0.0, 0.1, 0.3, 0.5, 0.7, 0.9, 1.0) and n-type PBTE doped with y mass% PbI2 (y=0.0, 0.2, 0.5, 0.8, 1.0), were observed in the temperature range of 50oC to 500oC using a differential scanning calorimeter (DSC). The SPECIFIC HEAT of pure Te is also observed in the same temperature range to confirm the dominance of Te. At lower temperatures below 200oC, all the observed data were fairly consistent with those predicted on the basis of Dulong-Petit’s law, while above 200oC, the observed data showed curious temperature dependences. At high temperatures above 200oC, DSC ANALYSIS, with the aid of the experiment on pure Te, revealed an anomalously large SPECIFIC HEAT that can be predicted from the Schottky defects caused by decomposition and sublimation of Te. In the n-type case, the anomaly in SPECIFIC HEATs is rather smaller than that in the p-type case, which fact suggested that the dopant PbI2 may suppress the decomposition and sublimation of Te from lead tellurides.

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    APA: Copy

    YONEDA, SEIJI, KATO, MASAHIKO, & OHSUGI, ISAO J.. (2013). ANOMALY IN THE SPECIFIC HEAT OF LEAD TELLURIDES. JOURNAL OF THEORETICAL AND APPLIED PHYSICS (IRANIAN PHYSICAL JOURNAL), 7(7), 1-5. SID. https://sid.ir/paper/318710/en

    Vancouver: Copy

    YONEDA SEIJI, KATO MASAHIKO, OHSUGI ISAO J.. ANOMALY IN THE SPECIFIC HEAT OF LEAD TELLURIDES. JOURNAL OF THEORETICAL AND APPLIED PHYSICS (IRANIAN PHYSICAL JOURNAL)[Internet]. 2013;7(7):1-5. Available from: https://sid.ir/paper/318710/en

    IEEE: Copy

    SEIJI YONEDA, MASAHIKO KATO, and ISAO J. OHSUGI, “ANOMALY IN THE SPECIFIC HEAT OF LEAD TELLURIDES,” JOURNAL OF THEORETICAL AND APPLIED PHYSICS (IRANIAN PHYSICAL JOURNAL), vol. 7, no. 7, pp. 1–5, 2013, [Online]. Available: https://sid.ir/paper/318710/en

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