Electrical transport in rare-earth orthochromites |
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Authors: | AK Tripathi HB Lal |
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Affiliation: | Department of Physics, University of Gorakhpur, Gorakhpur 273001, India |
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Abstract: | The electrical conductivity (σ) and Seebeck coefficient (![/></figure>) measurements on pressed pellets of La, Nd and Sm orthochromites are reported for the temperature range 300 to 1000K. These orthochromites exhibit extrinsic, p-type conduction in the whole temperature range. In both measurements, breaks define a transition temperature (T<sub>B</sub>), which has been predicted to be due to some dielectric anomaly. Seebeck coefficient measurements show that thermal generation of charge carriers begins above T<sub>B</sub>.</td>
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