| Автор | I M Band |
| Автор | V I Fomichev |
| Автор | M B Trzhaskovskaya |
| Дата выпуска | 1981-04-14 |
| dc.description | The authors consider some specific features of the 4f wavefunction collapse in the rare-earth elements and its effect on all nf electrons with n>4. The results of this investigation are used in Dirac-Fock self-consistent field calculations for lanthanum (6s<sup>2</sup>nf<sub>5/2</sub>) and europium (6s<sup>2</sup>4f<sub>5/2</sub><sup>6</sup>nf<sub>7/2</sub>) with n=4, 5 and 6. The exchange interaction is shown to play an important role in the formation of 'collapsed' and 'blown' states of these atoms with n=4. A calculation has been made of the contribution to the total energy of an atom coming from the lanthanum 4f<sub>5/2</sub> and europium 4f<sub>7/2</sub> electrons in the 'collapsed' and 'blown' states of these atoms. The europium nf<sub>7/2</sub> electrons with n=5 and n=6 are shown to be localised in the outer well of the effective potential, their one-electron parameters being close to those of the 5f and 6f electrons in the Coulomb field, respectively. At the same time in lanthanum with n=5 and n=6, the nf<sub>5/2</sub> electrons can be found with a high probability in either of the effective potential wells. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | 'Dirac-Fock atoms' in the rare-earth region and the 4f wavefunction collapse phenomenon |
| Тип | paper |
| DOI | 10.1088/0022-3700/14/7/008 |
| Print ISSN | 0022-3700 |
| Журнал | Journal of Physics B: Atomic and Molecular Physics |
| Том | 14 |
| Первая страница | 1103 |
| Последняя страница | 1118 |
| Аффилиация | I M Band; Leningrad Nuclear Phys. Inst., Leningrad, USSR |
| Аффилиация | V I Fomichev; Leningrad Nuclear Phys. Inst., Leningrad, USSR |
| Аффилиация | M B Trzhaskovskaya; Leningrad Nuclear Phys. Inst., Leningrad, USSR |
| Выпуск | 7 |
