Magnetic phase transitions in the 1D ising antiferromagnet CsCoCl3 |
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Authors: | W Breitling W Lehmann R Weber |
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Institution: | Fachbereich Physik, Universität Konstanz, D 7750 Konstanz, Fed. Rep. Germany |
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Abstract: | We report on Raman scattering from the magnons in CsCoCl3 with particular emphasis on two magnetic phase transitions occurring at TN = 20.82 K and at 8 K. The T → 0 magnon spectrum is fitted by a anisotropic Heisenberg model. With a simple cluster model we can explain the temperature behaviour of the magnon frequencies and intensities. The physics of the 8 K phase transition is also discussed. |
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