Seebeck Coefficient of Kondo Insulators
| Autor: | Tetsuro Saso, Kentaro Urasaki |
|---|---|
| Rok vydání: | 2002 |
| Předmět: | |
| Zdroj: | Journal of the Physical Society of Japan. 71:288-290 |
| ISSN: | 1347-4073 0031-9015 |
| DOI: | 10.1143/jpsjs.71s.288 |
| Popis: | Seebeck coefficient S of the Kondo insulators is investigated theoretically within the framework of the dynamical mean field theory. It is found that the temperature dependence changes from the ordinary behavior S ( T ) ∝ T -1 in semiconductors to approximately S ∝ T at low temperatures due to the finite imaginary part of the electron self-energy in the Kondo insulators with strong correlation. Realistic models for YbB 12 and FeSi based on the band calculations are also investigated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|