| Автор | Wolfgang Henggeler |
| Автор | Albert Furrer |
| Дата выпуска | 1998-03-30 |
| dc.description | The unique character of inelastic neutron scattering in the study of magnetic excitations of rare-earth-containing high-temperature superconductors is summarized. It is exemplified for single-ion, cluster and collective magnetic excitations which are directly related to the fundamental interactions associated with the rare-earth sublattice. Crystalline-electric-field and cluster excitations are discussed for which provide information on the electrostatic potential and the magnetic pair coupling at the rare-earth site, respectively. The study of collective magnetic excitations in both grain-aligned samples and single crystals yields more detailed information on the exchange coupling. In particular, we show how Ce doping affects the spin-wave dispersion of , i.e., a strong softening of the excitation spectra is observed which explains the huge Sommerfeld coefficients in (x > 0.1). |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Magnetic excitations in rare-earth-based high-temperature superconductors |
| Тип | rev |
| DOI | 10.1088/0953-8984/10/12/003 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 10 |
| Первая страница | 2579 |
| Последняя страница | 2596 |
| Аффилиация | Wolfgang Henggeler; Laboratory for Neutron Scattering, Eidgenössische Technische Hochschule Zürich and Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland |
| Аффилиация | Albert Furrer; Laboratory for Neutron Scattering, Eidgenössische Technische Hochschule Zürich and Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland |
| Выпуск | 12 |
