| Title | Flattening of single-particle spectra in strongly correlated electron systems and the violation of the Wiedemann-Franz law |
| Publication Type | Journal Article |
| Year of Publication | 2008 |
| Authors | V. A. Khodel, V. M. Yakovenko, and M. V. Zverev |
| Journal | JETP Letters |
| Volume | 86 |
| Pagination | 772–778 |
| Date Published | feb |
| ISSN | 0021-3640 |
| Keywords | 2008, Single Fellow |
| Abstract | The renormalization of the Wiedemann-Franz (WF) ratio in strongly correlated electron systems is analyzed within the Landau quasiparticle picture. We demonstrate that the WF law is violated: (i) at the quantum critical point, where the effective mass diverges, and (ii) beyond a point of fermion condensation, where the single-particle spectrum \$\backslash epsilon(p)\$ becomes flat. Results of the analysis are compared with available experimental data. |
| URL | http://arxiv.org/abs/0711.3777 |
