|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'503'724
Articles rated: 2609
23 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Spin entropy as the likely source of enhanced thermopower in $
mf Na_xCo_2O_4 | | Yayu Wang
; Nyrissa S. Rogado
; R. J. Cava
; N. P. Ong
; | | Date: |
4 Jun 2004 | | Journal: | Nature 423, 425 (2003) | | Subject: | Strongly Correlated Electrons; Materials Science | cond-mat.str-el cond-mat.mtrl-sci | | Abstract: | In an electric field, the flow of electrons in a solid produces an entropy current in addition to the familiar charge current. This Peltier effect underlies all thermoelectric refrigerators. The upsurge in thermoelectric cooling applications has led to a search for more efficient Peltier materials and to renewed theoretical interest in how electron-electron interaction may enhance the thermopower $Q$ of materials such as the transition-metal oxides cite{Mahan,Beni,Kotliar,Chaikin}. An important factor in this enhancement is the electronic spin entropy, which is predicted cite{Chaikin,Kwak,KwakChaikin} to dominate the entropy current. Here we report evidence for such suppression in the layered oxide $
m Na_xCo_2O_4$, and present evidence that it is a strong-correlation effect. | | Source: | arXiv, cond-mat/0406125 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER