Abstract
CsFeCl{sub 3} is a quasi 1D magnetic system with a singlet groundstate. The Fe{sup 2+} ion has an effective spin S=1. Experimental results in a magnetic field applied perpendicular to the anisotropy axis show that the excited states (doubly degenerate in zero field) split and shift to higher frequencies with increasing field. The split of the high frequency modes is very small compared to the instrumental resolution. Only polarisation analysis of inelastic neutron scattering made it possible to observe the splitting everywhere in reciprocal space. The frequency shift of the two modes with field is different such that a mode crossing appears for fields below about 4 Tesla. (author) 9 figs., 1 tab., 7 refs.
Dorner, B;
[1]
Toperverg, B;
[2]
Baehr, M;
[3]
Petitgrand, D
[4]
- Institut Max von Laue - Paul Langevin (ILL), 38 - Grenoble (France)
- St. Petersburg Nuclear Physics Inst., St. Petersburg (Russian Federation)
- Hahn-Meitner-Institut Berlin GmbH (Germany)
- Laboratoire Leon Brillouin (LLB) - Centre d`Etudes de Saclay, 91 - Gif-sur-Yvette (France)
Citation Formats
Dorner, B, Toperverg, B, Baehr, M, and Petitgrand, D.
Identification of different magnetic modes in CsFeCl{sub 3} by polarisation analysis.
Switzerland: N. p.,
1996.
Web.
Dorner, B, Toperverg, B, Baehr, M, & Petitgrand, D.
Identification of different magnetic modes in CsFeCl{sub 3} by polarisation analysis.
Switzerland.
Dorner, B, Toperverg, B, Baehr, M, and Petitgrand, D.
1996.
"Identification of different magnetic modes in CsFeCl{sub 3} by polarisation analysis."
Switzerland.
@misc{etde_475552,
title = {Identification of different magnetic modes in CsFeCl{sub 3} by polarisation analysis}
author = {Dorner, B, Toperverg, B, Baehr, M, and Petitgrand, D}
abstractNote = {CsFeCl{sub 3} is a quasi 1D magnetic system with a singlet groundstate. The Fe{sup 2+} ion has an effective spin S=1. Experimental results in a magnetic field applied perpendicular to the anisotropy axis show that the excited states (doubly degenerate in zero field) split and shift to higher frequencies with increasing field. The split of the high frequency modes is very small compared to the instrumental resolution. Only polarisation analysis of inelastic neutron scattering made it possible to observe the splitting everywhere in reciprocal space. The frequency shift of the two modes with field is different such that a mode crossing appears for fields below about 4 Tesla. (author) 9 figs., 1 tab., 7 refs.}
place = {Switzerland}
year = {1996}
month = {Nov}
}
title = {Identification of different magnetic modes in CsFeCl{sub 3} by polarisation analysis}
author = {Dorner, B, Toperverg, B, Baehr, M, and Petitgrand, D}
abstractNote = {CsFeCl{sub 3} is a quasi 1D magnetic system with a singlet groundstate. The Fe{sup 2+} ion has an effective spin S=1. Experimental results in a magnetic field applied perpendicular to the anisotropy axis show that the excited states (doubly degenerate in zero field) split and shift to higher frequencies with increasing field. The split of the high frequency modes is very small compared to the instrumental resolution. Only polarisation analysis of inelastic neutron scattering made it possible to observe the splitting everywhere in reciprocal space. The frequency shift of the two modes with field is different such that a mode crossing appears for fields below about 4 Tesla. (author) 9 figs., 1 tab., 7 refs.}
place = {Switzerland}
year = {1996}
month = {Nov}
}