skip to main content

Title: Structural and magnetic effects of Cd{sub 1-x}In{sub x}Cr{sub 2}Se{sub 4}

Polycrystalline CdCr{sub 2}Se{sub 4} spinels with non-magnetic indium substitution were investigated with an aim to study the influence of non-magnetic substitution at the Cd site on its structural and magnetic properties. We carried out powder XRD and magnetic measurements on three compositions: Cd{sub 1-x}In{sub x}Cr{sub 2}Se{sub 4} (x=0, 0.05, 0.1). The XRD patterns were analyzed by carrying out Rietveld analysis and structural parameters were estimated. Phase purity of the compounds using reitveld refinement technique where confirming the indium distribution at tetrahedral site of the cubic close-packed sublattice formed by the selenium ions. The chemical compositions of these compounds were determined by energy dispersive x-ray analysis. Compared to parent compound, CdCr{sub 2}Se{sub 4}, the ferromagnetic Curie temperature T{sub C} was found to decrease from 130K to 123K and 114K as x varied from 0 to 0.05 and 0.1 respectively, whereas the saturation magnetization increases in Cd{sub 0.95}In{sub 0.05}Cr{sub 2}Se{sub 4} and again decreases in Cd{sub 0.9}In{sub 0.1}Cr{sub 2}Se{sub 4}.
Authors:
;  [1] ;  [2]
  1. School of Basics Sciences, Indian Institute of Technology Indore, Khandwa Road, Indore-452017 (India)
  2. Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai-400 005 (India)
Publication Date:
OSTI Identifier:
22490569
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; CADMIUM COMPOUNDS; CHEMICAL COMPOSITION; CHROMIUM SELENIDES; COMPARATIVE EVALUATIONS; CURIE POINT; FERROMAGNETIC MATERIALS; FERROMAGNETISM; MAGNETIC PROPERTIES; MAGNETIZATION; POLYCRYSTALS; POWDERS; SELENIUM IONS; SPINELS; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY