Journal of the Physical Society of Japan · 1981 · 30 citations · 9 references
Natural SciencesPhysicsCondensed Matter PhysicsMagnetic MaterialsSpectroscopyMagnetic CharacterizationMagnetic Properties Of SolidsMagnetic SusceptibilityMagnetism In SolidsBand Gap EnergyEnergy Band GapEnergy Gap AnalysisMagnetic Property CharacterizationMagnon ExcitationsOptical PropertiesRaman ScatteringTemperature Dependence Of Magnetic Properties
Magnetic properties in the paramagnetic phase of pseudo-one-dimensional system RbFeCl 3 are studied within a linear chain model on the basis of the Dynamical CEFA (Correlated-Effective-Field Approximation). The results of calculation, the magnetic susceptibility, the temperature and magnetic-field dependences of the magnon energy and the magnon dispersion, can well explain the experimental results. The gap energy D between the ground state and the excited doublet of the Fe 2+ ion is conclusively estimated to be \(\gtrsim\)14.0 cm -1 . The possibility of two-magnon Raman scattering is also predicted and the temperature dependences of the Raman line shape and the integrated intensity are calculated.
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H. Yoshizawa, Wakae Kozukue, Kinshiro Hirakawa · Journal of the Physical Society of Japan · 1980 · 87 citations