Effect of Ni–Co codoping on structure and electrical properties of multiferroic BiFeO 3 nanoparticles

Micro & nano letters

article

Sk Mazaffar Hossain¹  Ayan Mukherjee¹  Soumen Basu¹  Mrinal Pal² 

[1] Department of Physics, National Institute of Technology;CSIR-Central Mechanical Engineering Research Institute

关键词: bismuth compounds;    differential thermal analysis;    doping;    electrical conductivity;    electrical resistivity;    ferroelectric transitions;    heat treatment;    multiferroics;    nanofabrication;    nanoparticles;    sol-gel processing;    transmission electron microscopy;    X-ray diffraction;    BiFeO3Ni;    Co;    resistivity;    electrical conductivity;    ferroelectric-paraelectric phase transition;    differential thermal analyser;    heat-flow measurement;    high-resolution transmission electron microscopy;    X-ray diffraction;    morphology;    crystal structure;    sol-gel technique;    multiferroic nanoparticles;    electrical properties;    structural properties;    codoping effect;   

DOI  :  10.1049/mnl.2013.0078

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Ni and Co doped nanocrystalline BiFeO3 (BFO) have been prepared using a facile sol–gel technique. The effects of codoping on the crystal structure, morphology and electrical properties are investigated. X-ray diffraction and high-resolution transmission electron microscopy studies confirm the phase purity and growth of BFO nanoparticles. The heat-flow measurement using a differential thermal analyser shows an endothermic peak between 1070 and 1100 K representing ferroelectric to paraelectric phase transition. A systematic electrical conductivity study of these nanoparticles delineates that resistivity increases for doped BFO samples which is very much desirable for device applications of multiferroics.

【 授权许可】

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