NMR INVESTIGATION OF MN(HFAC)(2)NITIPR - EVIDENCE OF NONLINEAR EXCITATIONS IN A ONE-DIMENSIONAL FERRIMAGNET

Citation
F. Ferraro et al., NMR INVESTIGATION OF MN(HFAC)(2)NITIPR - EVIDENCE OF NONLINEAR EXCITATIONS IN A ONE-DIMENSIONAL FERRIMAGNET, Molecular physics, 85(6), 1995, pp. 1073-1088
Citations number
51
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
ISSN journal
00268976
Volume
85
Issue
6
Year of publication
1995
Pages
1073 - 1088
Database
ISI
SICI code
0026-8976(1995)85:6<1073:NIOM-E>2.0.ZU;2-4
Abstract
The low temperature NMR investigation of Mn(hfac)(2)NITiPr, a one-dime nsional ferrimagnet formed by manganese(II), spin S = 5/2, and nitrony l nitroxide NITiPr, spin S = 1/2, is reported. The main feature observ ed is a field dependent maximum in the H-1 longitudinal relaxation rat e. These data are explained assuming nonlinear excitations, like 2 pi sine-Gordon solitons. The theoretical modelling for solitons in 1D fer rimagnets is outlined. This is the first report of soliton spin dynami cs in one-dimensional ferrimagnets.