Cationic distribution assisted tuning of magnetic properties of Li{sub 0.5-x/2}Zn{sub x}Fe{sub 2.5-x/2}O{sub 4}

Journal Article · Sun May 15 00:00:00 EDT 2016 · AIP Advances

DOI:https://doi.org/10.1063/1.4944517· OSTI ID:22611742

Panchal, S.; Raghuvanshi, S.; Gehlot, K.; Mazaleyrat, F. ^[1]

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1. SATIE, ENS de Cachan, UMR CNRS 8029 , UniverSud Paris, 61 Avenue du President Wilson, 94235Cachan (France)

Zn addition induced modification of cationic distribution for tuning magnetic properties of Li{sub 0.5-x/2}Zn{sub x}Fe{sub 2.5-x/2}O{sub 4} (x = 0, 0.1, 0.25, 0.3, 0.5, 0.7, 0.9, 1.0) powders is studied by x-ray diffraction (XRD) and magnetic measurements. XRD shows the formation of cubic spinel structure, with Scherrer’s grain diameter ranging between 26.7 to 37.8 nm. With Zn addition, oxygen anions are displaced in such a way that the A-B interaction weakens, whereas A-A and B-B interaction strengthens; furthermore it also pushes Fe{sup 3+} and Li{sup 1+} ions to B site, leading to changes in magnetic properties. Highest saturation magnetization (M{sub s}) of 64.6 A m{sup 2} / kg was obtained for sample with x = 0.25 and lowest coercivity (H{sub c}) of 4949.9 A/m was obtained for the sample with x = 0.7. Calculated values of experimental magnetic moment ‘n{sub B}’ and Neel magnetic moment ‘n{sub N}’, display similar trend as that of M{sub s}. Present results very clearly show a strong correlation between Zn-addition induced changes in cation distribution and magnetic properties, which can be utilized effectively for tuning magnetic properties.

• OSTI ID: 22611742
• Journal Information: AIP Advances, Vol. 6, Issue 5; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2158-3226
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COERCIVE FORCE
CORRELATIONS
CRYSTAL STRUCTURE
DISTRIBUTION
INTERACTIONS
IRON COMPOUNDS
IRON IONS
LITHIUM COMPOUNDS
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIZATION
MODIFICATIONS
OXYGEN
OXYGEN COMPOUNDS
POWDERS
SATURATION
SPINELS
X-RAY DIFFRACTION
ZINC COMPOUNDS