| Автор | J J Bercier |
| Автор | M Jirousek |
| Автор | M Graetzel |
| Автор | J J van der Klink |
| Дата выпуска | 1993-11-01 |
| dc.description | The abrupt discontinuity of the background in the semi-infinite jellium results in a decaying oscillatory (Bardeen) spatial response of the electron gas. Related phenomena are the Friedel oscillations around an impurity in a metal, and the Ruderman-Kittel coupling between two localized magnetic moments embedded in a sea of conduction electrons. We have found that the <sup>109</sup>Ag (I= 1/2 ) NMR linewidth in nanometre-sized supported (and therefore isolated) silver particles shows a size effect that may be due to Bardeen-Friedel oscillations. The linewidth is also temperature dependent, in a way that cannot easily be explained as an effect of paramagnetic impurities; we suggest that thermal vibrations, known to have comparatively large amplitudes in small particles, wash out the abruptness in the background-charge discontinuity, and thus diminish the amplitude of the oscillations. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Evidence from NMR for temperature-dependent Bardeen-Friedel oscillations in nanometre-sized silver particles |
| Тип | lett |
| DOI | 10.1088/0953-8984/5/44/005 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 5 |
| Первая страница | L571 |
| Последняя страница | L576 |
| Аффилиация | J J Bercier; Inst. de Phys. Exp., Ecole Polytech. Federale de Lausanne, Switzerland |
| Аффилиация | M Jirousek; Inst. de Phys. Exp., Ecole Polytech. Federale de Lausanne, Switzerland |
| Аффилиация | M Graetzel; Inst. de Phys. Exp., Ecole Polytech. Federale de Lausanne, Switzerland |
| Аффилиация | J J van der Klink; Inst. de Phys. Exp., Ecole Polytech. Federale de Lausanne, Switzerland |
| Выпуск | 44 |
