Spin-cluster excitations in RbFe·2O
- 1 April 1980
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 21 (7) , 3005-3014
- https://doi.org/10.1103/physrevb.21.3005
Abstract
Spin-cluster excitations (SCE) from the ground state are observed in the pseudo-one-dimensional canted Ising antiferromagnet RbFe·2O. Since the moments are canted with respect to each other, SCE were observed which show characteristics of a ferromagnetic chain and an antiferromagnetic chain when the external field is along the or axis, respectively. The results cannot be interpreted with the simple Ising model as in the case of spin-cluster resonance (SCR) reported earlier. For the small spin clusters observed in the present experiment, it is necessary to include effects from the higher single-ion states. Together with SCR the data provide rather detailed information on the magnetic ground state and the interactions.
This publication has 8 references indexed in Scilit:
- Spin-cluster resonance in the pseudo-one-dimensional canted Ising antiferromagnet RbFe·2OPhysical Review B, 1979
- Crystallographic and magnetic structure of RbFe·2O and CsFe·2OPhysical Review B, 1978
- Low-temperature heat capacity of the pseudo-one-dimensional magnetic systems CsMn.2O, -RbMn.2O, and CsMn.2OPhysical Review B, 1977
- A Method of Determining the Orderings of the Ising Model with Several Neighbor Interactions under the Magnetic Field and Applications to Hexagonal LatticesProgress of Theoretical Physics, 1976
- Far-infrared laser spectroscopy of the linear Ising system Co· 2OPhysical Review B, 1974
- Simultaneous Excitation of a Magnon plus a Phonon in Co·2O: A New Type of Bound State?Physical Review Letters, 1973
- Magnon Bound States in Anisotropic Linear ChainsPhysical Review B, 1969
- Far-Infrared Absorption in CoCl2·2H2OJournal of Applied Physics, 1968