Toperverg, B. P. and Dorner, B. and Sonntag, A. and Petitgrand, D. (1997) Quantum paramagnetic fluctuations in RbFeCl3 in a magnetic field applied perpendicular to the anisotropy axis. PHYSICAL REVIEW B, 55 (2). pp. 983-993. ISSN 0163-1829
Full text not available from this repository.Abstract
The results for experimental and theoretical studies of the spin dynamics in the crystal of RbFeCl3 in a magnetic field up to 5.5 T applied perpendicular to the anisotropy axis are reported. The data for the excitation spectrum collected in the inelastic neutron-scattering experiment at 5.5 K, i.e., well above the phase-transition temperature, are treated in accordance with the theory developed for the quantum paramagnetic fluctuations in spin-1 systems with strong easy-plane-type anisotropy. Ln order to check the theory, the parameters extracted from the spectrum evaluation are used to calculate the expected dependencies of the ratios between intensities of two measured excitation branches on momentum transfer and magnetic field. No additional fitting parameters are needed to obtain a satisfactory agreement with the experimental ratios.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SINGLET-GROUND-STATE; ANTI-FERROMAGNET RBFECL3; NEUTRON-SCATTERING; EXCITATIONS; CSFECL3; CSFEBR3; TRANSITIONS |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 24 May 2023 09:45 |
| Last Modified: | 24 May 2023 09:45 |
| URI: | https://pred.uni-regensburg.de/id/eprint/51242 |
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