Title :
Effect of N-Co codoping on structure and electrical properties of multiferroic BiFeO3 nanoparticles
Author :
Hossain, Syed Monowar ; Mukherjee, Arjun ; Basu, Sreetama ; Pal, Monalisa
Author_Institution :
Dept. of Phys., Nat. Inst. of Technol., Durgapur, India
Abstract :
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.
Keywords :
X-ray diffraction; bismuth compounds; differential thermal analysis; doping; electrical conductivity; electrical resistivity; ferroelectric transitions; heat treatment; multiferroics; nanofabrication; nanoparticles; sol-gel processing; transmission electron microscopy; BiFeO3:Ni,Co; X-ray diffraction; codoping effect; crystal structure; differential thermal analyser; electrical conductivity; electrical properties; ferroelectric-paraelectric phase transition; heat-flow measurement; high-resolution transmission electron microscopy; morphology; multiferroic nanoparticles; resistivity; sol-gel technique; structural properties;
Journal_Title :
Micro & Nano Letters, IET
DOI :
10.1049/mnl.2013.0078
