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research article
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.
Type
research article
Web of Science ID
WOS:000269198900017
Authors
Publication date
2009
Published in
Volume
21
Issue
37
Article Number
375401
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
November 30, 2010
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