Low temperature measurements by infrared spectroscopy in CoFe2O4 ceramic

This paper presents results of new far-infrared and middle-infrared measurements (wavenumber range of 4000–100 cm −1 ) of the CoFe 2 O 4 ceramic in the temperature range from 300 K to 8 K. The band positions and their shapes remain constant across the wide temperature range. The quality of the sampl...

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Bibliographic Details
Published in:Central European journal of physics 2012-10, Vol.10 (5), p.1137-1143
Main Authors: Bujakiewicz-Korońska, Renata, Hetmańczyk, Łukasz, Garbarz-Glos, Barbara, Budziak, Andrzej, Kalvane, Anna, Bormanis, Karlis, Drużbicki, Kacper
Format: Article
Language:English
Subjects:
Biological and Medical Physics
Biophysics
cobalt spinel ferrite
CoFe2O4
Environmental Physics
FT-FIR
FT-MIR
Geophysics/Geodesy
infrared
Physical Chemistry
Physics
Physics and Astronomy
Research Article
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Summary:This paper presents results of new far-infrared and middle-infrared measurements (wavenumber range of 4000–100 cm −1 ) of the CoFe 2 O 4 ceramic in the temperature range from 300 K to 8 K. The band positions and their shapes remain constant across the wide temperature range. The quality of the sample was investigated by X-ray, EDS and EPMA studies. The CoFe 2 O 4 retains the cubic structure ( Fd - 3 m ) across the temperature range from 85 K to 360 K without any traces of distortion. Based on current knowledge the polycrystalline CoFe 2 O 4 does not exhibit any phase transitions across the temperature range from 8 K to 300 K.
ISSN:1895-1082
2391-5471
1644-3608
2391-5471
DOI:10.2478/s11534-012-0101-4