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Title: Microstructural, dielectric and magnetic properties of multiferroic composite system barium strontium titanate – nickel cobalt ferrite

Multiferroic composites (1-x) Ba{sub 0.95}Sr{sub 0.05}TiO{sub 3} + (x) Ni{sub 0.8}Co{sub 0.2}Fe{sub 2}O{sub 4} (where x = 0.1, 0.2, 0.3, 0.4) has been prepared by solid state reaction method. X-ray diffraction analysis of the composite samples confirmed the presence of both barium strontium titanate (BST) and nickel cobalt ferrite (NCF) phases. FESEM images indicated the well dispersion of NCF grains among BST grains. Dielectric constant and loss of the composite samples decreases with increase in frequency following Maxwell-Wagner relaxation mechanism. Composite sample with highest ferrite content possesses highest values of remanent and saturation magnetization.
Authors:
;  [1]
  1. Department of Physics and Astrophysics, University of Delhi, Delhi-110007 (India)
Publication Date:
OSTI Identifier:
22391699
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1661; Journal Issue: 1; Conference: ICCMP 2014: International Conference on Condensed Matter Physics 2014, Shimla (India), 4-6 Nov 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BARIUM COMPOUNDS; COBALT COMPOUNDS; COMPOSITE MATERIALS; CONCENTRATION RATIO; DIELECTRIC MATERIALS; FERRITES; FREQUENCY DEPENDENCE; MAGNETIC PROPERTIES; MAGNETIZATION; MICROSTRUCTURE; NICKEL COMPOUNDS; PERMITTIVITY; RELAXATION; STRONTIUM TITANATES; X-RAY DIFFRACTION