Infrared investigation of the phonon spectrum in the frustrated spin cluster compound FeTe2O5Cl

We present our optical investigations on the frustrated spin cluster compound FeTe2O5Cl, which develops a long-range antiferromagnetic order below 10 K. We measure the optical reflectivity from the far-infrared to the ultraviolet with polarized light. We focus our attention on the lattice dynamics by discussing the infrared-active modes. Our findings reveal a polarization dependence of the vibrational modes but which do not seem to be affected by structural anomalies linked to the magnetically ordered state at low temperatures.


Published in:
Journal Of Physics-Condensed Matter, 21, -
Year:
2009
Keywords:
Laboratories:




 Record created 2010-11-30, last modified 2018-03-17


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