1203.2088 (Renata Bujakiewicz-Korońska et al.)

Low Temperature Measurements by Infrared Spectroscopy in CoFe$_2$O$_4$
Ceramic    [PDF]

Renata Bujakiewicz-Korońska, Łukasz Hetmańczyk, Barbara Garbarz-Glos, Andrzej Budziak, Anna Kalvane, Karlis Bormanis

In this paper results of new infrared FIR-MIR measurements (wavenumber range of (4000-100) cm-1) in the range of the temperature from 300 K to 8 K of the CoFe2O4 (CFO) ceramic are presented. The bands positions and their shapes are the same in the wide temperature range. The quality of the sample was investigated by X-ray, EDS and EPMA studies. The CFO reveals the cubic structure (Fd-3m) in the temperature range from 85 K to 360 K without any traces of distortion. On the current level of knowledge the polycrystalline CFO does not exhibit phase transition in the temperature range from 8 K to 300 K.

View original: http://arxiv.org/abs/1203.2088