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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/36

Title: Effect of Sr-doping on multiferroic properties of Bi0.8La0.2Fe0.9Mn0.1O3
Authors: Ghosh, Anup K
Kevin, H
Chatterjee, B
Dwivedi, G D
Barman, A
Yang, H D
Chatterjee, S
Keywords: A. Multiferroics
A. Ferroelectrics
C. Magnetization
C. Phase transitions
Issue Date: 2012
Publisher: Solid State Commun.
Citation: A. K. Ghosh, H. Kevin, B. Chatterjee, G. D. Dwivedi, A. Barman, H.D. Yang, and S. Chatterjee, Effect of Sr-doping on multiferroic properties of Bi0.8La0.2Fe0.9Mn0.1O3, Solid State Commun., 2012, 152, 557
Abstract: The effect of Sr-doping on ferroelectricity and ferromagnetism at room temperature has been studied for Bi0.8La0.2Fe0.9Mn0.1O3 ceramic system. X-ray diffraction shows that a structural phase transition occurs from rhombohedral structure of BiFeO3 (space group R3c) to orthorhombic structure of Bi0.8La0.2FeO3(space group C222). Substitutions of Sr-ions in Bi-site and Mn-ions in Fe-site do not induce any further structural change. Moreover, doping of Sr-ions plays a crucial role to obtain single phased samples. DTA and TGA studies show that both the magnetic transition temperature (TM) and the ferroelectric transition temperature (TC ) decrease for Bi0.7Sr0.1La0.2Fe0.9Mn0.1O3. Sr-doping enhances the ferroelectric property by increasing the electric polarization. M–H measurement shows that Sr-ions partially destroy the spin cycloidal structure in it giving rise to weak ferromagnetism (nonlinearity) at room temperature.
URI: http://hdl.handle.net/123456789/36
Appears in Collections:2012

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