Enhanced magnetic properties in hydrothermally synthesized Mn-doped BiFeO3 nanoparticles

Mn-doped BiFeO3 (BiFe1-xMnxO3 x = 0, 0.05, 0.1) nanoparticles were synthesised by a hydrothermal method. XRD and TEM indicated that the particle size decreased when doped with Mn. The ferroelectric Curie temperature estimated from DTA decreased with increasing Mn concentration. Magnetic studies show...

Full description

Saved in:
Bibliographic Details
Published in:Current applied physics 2011-07, Vol.11 (4), p.976-980
Main Authors: Basu, S, Hossain, S K M, Chakravorty, D, Pal, M
Format: Article
Language:English
Subjects:
Breakdown
Curie temperature
Ferromagnetism
Magnetic properties
Manganese
Nanoparticles
Particle size
Transmission electron microscopy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Mn-doped BiFeO3 (BiFe1-xMnxO3 x = 0, 0.05, 0.1) nanoparticles were synthesised by a hydrothermal method. XRD and TEM indicated that the particle size decreased when doped with Mn. The ferroelectric Curie temperature estimated from DTA decreased with increasing Mn concentration. Magnetic studies showed that below 200 K all samples exhibited ferromagnetic behaviour and the magnetisation value at 10 K increased from 0.0027 to 2.75 emu/g when doped with 5% Mn. Enhancement of magnetisation observed in these nanocrystals is discussed on the basis of the combined effect of local ferrimagnetisation by B-site doping and the breakdown of spin cycloid due to smaller particle size.
ISSN:1567-1739
DOI:10.1016/j.cap.2010.12.034