Publication Date:
2014-12-02
Description:
Lanthanum calcium manganites (La 0.5 Ca 0.5 MnO 3 ) with a composition close to charge ordering, synthesized by high energy ball milling, was found to exhibit colossal thermoelectric power. Thermoelectric power (TEP) data was systematically analyzed by dividing the entire temperature range (5 K–300 K) into three different regimes to explore different scattering mechanisms involved. Mandal's model has been applied to explain TEP data in the region below the Curie temperature (T C ). It has been found that the variation of thermoelectric power with temperature is pronounced when the system enters the charge ordered region at T
Print ISSN:
0021-8979
Electronic ISSN:
1089-7550
Topics:
Physics
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