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http://dx.doi.org/10.4191/KCERS.2003.40.9.849

Low Temperature Thermoelectric Power Properties in La2.1Sr1.9Mn3O10 System  

정우환 (호원대학교 디지털영상정보학부)
Publication Information
Journal of the Korean Ceramic Society / v.40, no.9, 2003 , pp. 849-854 More about this Journal
Abstract
Temperature dependent thermoelectric power (TEP) of La$_{2.1}$ Sr$_{1.9}$ Mn$_3$O$_{10}$ system has been studied in the temperature range 80-373 K. In the low temperature ferromagnetic regime, TEP (S) follows an expression of formS＝S$_{0}$ ＋S$_{1.5}$ T$^{1.5}$ ＋S$_4$T$^4$ over the wide range of temperature. The broad peak below the ferromagnetic transition and complicated temperature dependence of S may be understood on the basis of electron-magnon scattering as predicted for an itinerant ferromagnet. High temperature TEP data can be well fitted with Mott's small polaron hopping model.
Keywords
Electron-magnon scattering; Hopping; Small polaron; Thermoelectric power;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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