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Title: Effect of structural phase transformation in FeGaO{sub 3} on its magnetic and ferroelectric properties

We investigate the structural phase transformation from orthorhombic to rhombohedral structure in FeGaO{sub 3} by adopting a combined effect of mechanical alloying/milling and solid state sintering techniques. The structural phase formation of the FeGaO{sub 3} compound has been characterized by X-ray diffraction pattern. Mechanical milling played a significant role on the stabilization of rhombohedral phase in FeGaO{sub 3}, where as high temperature sintering stabilized the system in orthorhombic phase. A considerable difference has been observed in magnetic and ferroelectric properties of the system in two phases. The system in rhombohedral (R-3c) phase exhibited better ferromagnetic and of ferroelectric properties at room temperature in comparison to orthorhombic (Pc2{sub 1}n) phase. The rhombohedral phase appears to be good for developing metal doped hematite system for spintronics applications and in that process mechanical milling played an important role.
Authors:
;  [1]
  1. Department of Physics, Pondicherry University, R.Venkataraman Nagar, Kalapet, Pondicherry – 605014 (India)
Publication Date:
OSTI Identifier:
22490205
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; COMPARATIVE EVALUATIONS; DOPED MATERIALS; FERROELECTRIC MATERIALS; GALLIUM OXIDES; HEMATITE; IRON COMPOUNDS; MILLING; ORTHORHOMBIC LATTICES; PHASE TRANSFORMATIONS; SINTERING; STABILIZATION; TEMPERATURE DEPENDENCE; TRIGONAL LATTICES; X-RAY DIFFRACTION