Abstract
The magnetothermopower have been studied in Lu-doped Ca 3− x Lu x Co 4O 9+δ. A strong magnetic field suppression of thermopower indicates large spin entropy contribution. The magnetothermopower for doped samples are overall enhanced compared with that for undoped Ca 3Co 4O 9+δ, providing an experimental evidence for the enhancement of spin entropy. Magnetic results confirm that Co 4+ concentration is reduced by Lu doping. We suggest that the reduction in Co 4+ concentration results in the enhanced spin entropy.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
