| Автор | J M Landgraf |
| Автор | J W Rasul |
| Дата выпуска | 1994-01-03 |
| dc.description | The authors investigate the binding energy separation between the many-body ground-state singlet and higher-lying magnetic states for the f<sup>1</sup>-f<sup>2</sup> Anderson model to next-leading order in the 1/N expansion, where N denotes the orbital degeneracy of the f states. They formulate integral equations for the magnetic-state amplitudes that appear at next-leading order in 1/N and solve these, together with the integral equations that describe the singlet, numerically. They find that the total separation between magnetic and singlet states is small, even in the valence-fluctuation regime, and hence demonstrate the robustness of the leading-order result. They find that the maximum binding-energy separation is shifted towards higher valence, in contradiction to results of the minimal-degeneracy model. They also present results for the valence and charge susceptibility. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | 1/N corrections to the binding energy of an Anderson model fluctuating between two magnetic configurations |
| Тип | paper |
| DOI | 10.1088/0953-8984/6/1/020 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 6 |
| Первая страница | 203 |
| Последняя страница | 222 |
| Аффилиация | J M Landgraf; Harrison M Randall Lab. of Phys., Michigan Univ., Ann Arbor, MI, USA |
| Аффилиация | J W Rasul; Harrison M Randall Lab. of Phys., Michigan Univ., Ann Arbor, MI, USA |
| Выпуск | 1 |
