Cobalt oxides and kondo semiconductors: A pseudogap system as a thermoelectric material

Authors
Terasaki, I
Citation
I. Terasaki, Cobalt oxides and kondo semiconductors: A pseudogap system as a thermoelectric material, MATER TRANS, 42(6), 2001, pp. 951-955
Citations number
27
Categorie Soggetti
Material Science & Engineering
Journal title
MATERIALS TRANSACTIONS
ISSN journal
13459678 → ACNP
Volume
42
Issue
6
Year of publication
2001
Pages
951 - 955
Database
ISI
SICI code
1345-9678(200106)42:6<951:COAKSA>2.0.ZU;2-R
Abstract
Layered cobalt oxides and heavy-fermion compounds are quantitatively compar ed from the viewpoint of thermoelectric materials. These two systems exhibi t anomalously large thermopowers with good electric conductivity, which is attributed to a strong electron-electron correlation. In certain materials the pseudogap increases at low temperature, which further enhances the ther mopower.