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Magnetic modulation in mechanical alloyed Cr1.4Fe0.6O3 oxide

Author(s): Bhowmik RN | Murty M Nrisimha | Srinadhu E Sekhar

Journal: PMC Physics B
ISSN 1754-0429

Volume: 1;
Issue: 1;
Start page: 20;
Date: 2008;
Original page

Abstract The compound Cr1.4Fe0.6O3 has been synthesized through mechanical alloying of Cr2O3 and α-Fe2O3 powders and subsequent thermal annealing. The XRD spectrum, SEM picture and microanalysis of EDAX spectrum have been used to understand the structural evolution during alloy formation. The alloyed samples have been matched to rhombohedral structure with R3C space group. The observation of a modulated magnetic order confirmed the systematic diffusion of Fe atoms into the Cr sites of lattice structure. A field induced magnetic behaviour has been noted in the field dependence of magnetization data of the annealed samples. This feature is significantly different from that of the mechanical alloyed samples. The experimental results also provided the indications of considering the present material as a potential candidate for opto-electronic applications. PACS Codes: 75.30.-m, 75.20.En, 81.40.Rs
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