skip to main content

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

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.
Authors:
; ; ; ; ;  [1] ;  [2]
  1. Department of Physics, Saurashtra University, Rajkot-360005 (India)
  2. High pressure Physics Laboratory, Department of Physics, University of Rajasthan, Jaipur-302004 (India)
Publication Date:
OSTI Identifier:
22490560
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1665; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
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