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Title: Enhanced ferromagnetic properties in Ho and Ni co-doped BiFeO{sub 3} ceramics

The magnetic properties of polycrystalline Bi{sub 1-x}Ho{sub x}Fe{sub 1-y}Ni{sub y}O{sub 3} (x = 0, 0.1; y = 0, 0.03), which were prepared by the solid-state method, have been investigated. The powder X-ray diffraction reveals that all the samples are polycrystalline and show rhombohedral perovskite structure. The micro-Raman scattering studies confirm that Bi{sub 0.9}Ho{sub 0.1}Fe{sub 0.97}Ni{sub 0.03}O{sub 3} has a compressive lattice distortion induced by the simultaneous substitution of Ho and Ni ions at A and B-sites, respectively. From the magnetization dependences at room temperature, Bi{sub 0.9}Ho{sub 0.1}Fe{sub 0.97}Ni{sub 0.03}O{sub 3} has enhanced magnetization (0.2280 emu/g) and low coercive field (280 Oe). It was revealed that the Ni dopant plays an important role for the improved ferromagnetic properties and the Ho dopant favors the magnetic exchange interactions in the co-doped ceramic.
Authors:
 [1] ; ; ;  [2] ;  [3] ;  [4]
  1. Institute of Basic Sciences and Department of Physics, Sungkyunkwan University, Suwon 446-740 (Korea, Republic of)
  2. Department of Physics and RINS, Hanyang University, Seoul 133-791 (Korea, Republic of)
  3. Department of Nano and Electronic Physics, Kookmin University, Seoul 136-702 (Korea, Republic of)
  4. Department of Electronic Physics, Hankuk University of Foreign Studies, Yongin 449-791 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22271292
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 1; Other Information: (c) 2014 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; BISMUTH COMPOUNDS; CERAMICS; CONCENTRATION RATIO; DOPED MATERIALS; EXCHANGE INTERACTIONS; FERRITES; FERROMAGNETISM; HOLMIUM COMPOUNDS; MAGNETIC PROPERTIES; MAGNETIZATION; NICKEL COMPOUNDS; NICKEL IONS; POLYCRYSTALS; POWDERS; RAMAN EFFECT; SOLIDS; TEMPERATURE RANGE 0273-0400 K; TRIGONAL LATTICES; X-RAY DIFFRACTION