| Автор | J M Landgraf |
| Автор | J W Rasul |
| Дата выпуска | 1993-11-01 |
| dc.description | We calculate the magnetization as a function of field for an Anderson impurity model for which the lowest configurations are f<sup>1</sup> and f<sup>2</sup>, using the leading order 1/N expansion (where N is the orbital degeneracy). For most values of the valence, except those near two, we find a two-stage crossover in M(H). This is due to an unbinding of the many-body singlet, first to a partially screened magnetic state and then to the full f<sup>2</sup> moment. At small fields there is a positive deviation from linearity in M(H) near the integer valent limits which is characteristic of degenerate f<sup>0</sup>-f<sup>1</sup> models. This upturn disappears for intermediate values of the valence. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Field-dependent magnetization for an Anderson model fluctuating between two magnetic configurations |
| Тип | lett |
| DOI | 10.1088/0953-8984/5/44/001 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 5 |
| Первая страница | L541 |
| Последняя страница | L550 |
| 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 | 44 |
