Issue 1, 2012
From the journal:

RSC Advances

Structure and complex magnetic behavior of disordered perovskite (Bi0.5Sr0.5)(Fe0.5Mn0.5)O3

P. Mandal,a   Shridevi S. Bhat,a   Y. Sundarayya,a   A. Sundaresan,*a   C. N. R. Rao,a   V. Caignaert,b   B. Raveaub  and  E. Suardc  

* Corresponding authors

a Chemistry and Physics of Materials Unit and International Centre for Materials Science, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore, India

b CRISMAT, UMR 6508, CNRS-ENSICAEN, Universite de Caen, Caen Cedex, France

c Institut Laue Langevin, 6, Rue Jules Horowitz, Grenoble Cedex 9, France

Abstract

(Bi0.5Sr0.5)(Fe0.5Mn0.5)O3 crystallizes in a rhombohedral structure, with space group R[3 with combining macron]c, where the cations Bi3+/Sr2+ and Fe3+/Mn4+ occupy 6a and 6b sites respectively. Neutron diffraction, Mössbauer and magnetization measurements confirm long range antiferromagnetic ordering of the Fe3+ and Mn4+ moments at TN (226 K). Below TN, this oxide exhibits a cluster glass behavior and at low temperatures (∼30 K) a spin glass state is observed. The complex magnetic behavior is attributed to cation disorder in the system. Magnetic properties of this oxide are compared with those of the isostructural Bi0.5La0.5Fe0.5Mn0.5O3 where both Fe and Mn ions exist in trivalent state.

Graphical abstract: Structure and complex magnetic behavior of disordered perovskite (Bi0.5Sr0.5)(Fe0.5Mn0.5)O3

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Article information

DOI
https://doi.org/10.1039/C1RA00744K
Article type
Paper
Submitted
16 Sep 2011
Accepted
21 Sep 2011
First published
04 Nov 2011

RSC Adv., 2012,2, 292-297

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Structure and complex magnetic behavior of disordered perovskite (Bi0.5Sr0.5)(Fe0.5Mn0.5)O3

P. Mandal, S. S. Bhat, Y. Sundarayya, A. Sundaresan, C. N. R. Rao, V. Caignaert, B. Raveau and E. Suard, RSC Adv., 2012, 2, 292 DOI: 10.1039/C1RA00744K

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