| Автор | J J Davies |
| Автор | J Owen |
| Дата выпуска | 1969-08-01 |
| dc.description | The hyperfine interactions of single and of exchange-coupled pairs of Ir<sup>4+</sup> ions in (NH<sub>4</sub>)<sub>2</sub>PtCl<sub>6</sub> have been investigated by ENDOR methods at 4 °K. Recent investigations of electron transfer between magnetic ions have suggested that a measurable difference may occur. Experimentally, however, the difference is found to be less than 0·15%. The hyperfine constants are determined to be negative, leading to a value K = 0·85±0·4 for the core polarization constant for 5d electrons. The nuclear dipole moments of <sup>193</sup>Ir and <sup>191</sup>Ir are determined to be <sup>193</sup>μ = +0·162±0·006 nuclear magnetons and <sup>191</sup>μ = +0·146±0·008 nuclear magnetons, in agreement with recent measurements by nuclear magnetic resonance in the pure metal. A hyperfine anomaly of <sub>191</sub><sup>193</sup>Δ = (0·20±0·30)% is found. The ratio of the nuclear quadrupole moments is determined to be <sup>193</sup>Q:<sup>191</sup>Q = 0·92±0·09. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The hyperfine interactions of isolated and of exchange-coupled iridium ions in (NH<sub>4</sub>)<sub>2</sub>PtCl<sub>6</sub> |
| Тип | paper |
| DOI | 10.1088/0022-3719/2/8/307 |
| Print ISSN | 0022-3719 |
| Журнал | Journal of Physics C: Solid State Physics |
| Том | 2 |
| Первая страница | 1405 |
| Последняя страница | 1412 |
| Аффилиация | J J Davies; The Clarendon Laboratory, Parks Road, Oxford |
| Аффилиация | J Owen; The Clarendon Laboratory, Parks Road, Oxford |
| Выпуск | 8 |
