Abstract
We have found that the thermoelectric power of the ordered perovskite CaMn3-xCuxMn4O12 is negative at high temperature (-35 μV/K at 1000 K), although this material is a hole-doped conductor in which Cu2+ is substituted for Mn3+. This is quantitatively explained by the extended Heikes formula, where entropy flows in a direction opposite to the charge.
Original language | English |
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Pages (from-to) | 523-525 |
Number of pages | 3 |
Journal | Journal of the Physical Society of Japan |
Volume | 73 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2004 Mar |
Keywords
- Heikes formula
- Spin and orbital degeneracy
- Thermoelectric power
- Transition-metal oxide
ASJC Scopus subject areas
- Physics and Astronomy(all)