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

Journal Article · Wed Jun 24 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4918159· OSTI ID:22490560

Raval, P. Y.; Dulera, S. V.; Kathad, C. R.; Shah, S. J.; Trivedi, U. N. ^[1]; Chandra, Usha ^[2]

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1. Department of Physics, Saurashtra University, Rajkot-360005 (India)
2. High pressure Physics Laboratory, Department of Physics, University of Rajasthan, Jaipur-302004 (India)

Two specimens of copper ferrite, CuFe{sub 2}O{sub 4}, 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 (CuFeO{sub 2}) phase that is completely absent in quenched sample. The hyperfine interaction parameters are highly influenced by heat treatment employed.

• OSTI ID: 22490560
• Journal Information: AIP Conference Proceedings, Vol. 1665, Issue 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION SPECTROSCOPY
CERAMICS
COPPER
COPPER COMPOUNDS
FCC LATTICES
FERRITES
HEAT TREATMENTS
MOESSBAUER EFFECT
PARAMAGNETISM
SINTERING
SPINELS
X-RAY DIFFRACTION
ZEEMAN EFFECT