6533b7dafe1ef96bd126e17a

RESEARCH PRODUCT

Low temperature measurements by infrared spectroscopy in $CoFe_2O_4$ ceramic

Kacper DrużbickiAnna KalvaneKarlis BormanisŁUkasz HetmańczykAndrzej BudziakRenata Bujakiewicz-korońskaBarbara Garbarz-glos

subject

Phase transitionMaterials scienceQC1-999FT-FIRft-firAnalytical chemistryFOS: Physical sciencesGeneral Physics and AstronomyInfrared spectroscopyElectron microprobeTemperature measurement$CoFe_2O_4$CeramicCondensed Matter - Materials ScienceRange (particle radiation)Physicscobalt spinel ferriteMaterials Science (cond-mat.mtrl-sci)Atmospheric temperature rangecofe2o4visual_artinfraredvisual_art.visual_art_mediumCrystalliteft-mirFT-MIR

description

In this paper results of new far-infrared and middle-infrared measurements (wavenumber range of 4000cm-1 - 100cm-1) in the range of the temperature from 300K to 8K of the CoFe2O4 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 CoFe2O4 reveals the cubic structure (Fd-3m) in the temperature range from 85K to 360 K without any traces of distortion. On the current level of knowledge the polycrystalline CoFe2O4 does not exhibit phase transition in the temperature range from 8 K to 300 K.

10.2478/s11534-012-0101-4http://ruj.uj.edu.pl/xmlui/handle/item/3198