Effect of thermal history on Mossbauer signature and hyperfine interaction parameters of copper ferrite

Two specimens of copper ferrite, CuFe2O4, have been synthesized by double sintering ceramic technique with different thermal history i.e. slow cooled and quenched. X-ray diffractometry has confirmed single phase fcc spinel structure for slow cooled sample while tetragonal distortion is present in qu...

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Bibliographic Details
Main Authors: Modi, K. B., Raval, P. Y., Dulera, S. V., Kathad, C. R., Shah, S. J., Trivedi, U. N., Chandra, Usha
Format: Conference Proceeding
Language:English
Subjects:
ABSORPTION SPECTROSCOPY
CERAMICS
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
COPPER
COPPER COMPOUNDS
Copper ferrite
FCC LATTICES
FERRITES
Heat treatment
HEAT TREATMENTS
Interaction parameters
MOESSBAUER EFFECT
Mossbauer spectroscopy
PARAMAGNETISM
Quenching
SINTERING
SPINELS
Temperature
X ray spectra
X-RAY DIFFRACTION
ZEEMAN EFFECT
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Summary:Two specimens of copper ferrite, CuFe2O4, have been synthesized by double sintering ceramic technique with different thermal history i.e. slow cooled and quenched. X-ray diffractometry has confirmed single phase fcc spinel structure for slow cooled sample while tetragonal distortion is present in quenched sample. Mossbauer spectral analysis for slow-cooled copper ferrite reveals super position of two Zeeman split sextets along with paramagnetic singlet in the centre position corresponds to delafossite (CuFeO2) phase that is completely absent in quenched sample. The hyperfine interaction parameters are highly influenced by heat treatment employed.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4918159