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dc.contributor.author | Malkin B. | |
dc.contributor.author | Vanyunin M. | |
dc.contributor.author | Barbara B. | |
dc.contributor.author | Bertaina S. | |
dc.date.accessioned | 2018-09-18T20:10:24Z | |
dc.date.available | 2018-09-18T20:10:24Z | |
dc.date.issued | 2008 | |
dc.identifier.issn | 0925-8388 | |
dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/137248 | |
dc.description.abstract | Theory of magnetization relaxation in a diluted paramagnet based on calculations of relaxation rates due to electron-phonon coupling and magnetic dipole-dipole interactions is developed. Assuming fast establishment of equilibrium in the spin system and the Gaussian line shape for the spectral density of the dipole-dipole reservoir, we have derived a master equation for a paramagnetic ion. The developed approach is used to interpret dynamic magnetic measurements in LiYF4:Ho3+ single crystals. We show specific variations of low temperature magnetization dynamics at the magnetic field values corresponding to (anti-)crossings of electron-nuclear sublevels of the Ho3+ ground state. The measured dependences of the ac-susceptibility on frequency, holmium concentration and the applied magnetic field are described when taking into account the phonon bottleneck effect and the cross-relaxation. Evolution of the magnetization of the LiYF4:Ho3+ in the reversed field is considered. © 2007 Elsevier B.V. All rights reserved. | |
dc.relation.ispartofseries | Journal of Alloys and Compounds | |
dc.subject | Electron-phonon interactions | |
dc.subject | Rare earth alloys and compounds | |
dc.subject | Spin dynamics | |
dc.title | Relaxation rates of magnetization in LiYF4:Ho3+ crystals | |
dc.type | Article | |
dc.relation.ispartofseries-issue | 1-2 | |
dc.relation.ispartofseries-volume | 451 | |
dc.collection | Публикации сотрудников КФУ | |
dc.relation.startpage | 473 | |
dc.source.id | SCOPUS09258388-2008-451-12-SID38349083438 |