|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'506'133
Articles rated: 2609
26 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Electron Correlation and Jahn-Teller Interaction in Manganese Oxides | | Naoto Nagaosa
; Shuichi Murakami
; Hyun Cheol Lee
; | | Date: |
30 Sep 1997 | | Subject: | cond-mat | | Abstract: | The interplay between the electron repulsion $U$ and the Jahn-Teller electron-phonon interation $E_{LR}$ is studied with a large $d$ model for the ferromagnetic state of the manganese oxides. These two interactions collaborate to induce the local isospin (orbital) moments and reduce the bandwidth $B$. Especially the retardation effect of the Jahn-Teller phonon with the frequency $Omega$ is effective to reduce $B$, but the strong $Omega$-dependence occurs even when the Coulombic interaction is dominating ($ U >> E_{LR}$) as long as $E_{LR} > Omega$. The phonon spectrum consists of two components, i.e., the temperature independent sharp peak at $omega = { ilde Omega} = Omega [(U +4 E_{LR})/U]^{1/2}$ and that corresponding to the Kondo peak. These results compared with the experiments suggest that $Omega | | Source: | arXiv, cond-mat/9709335 | | 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