Disorder induced negative magnetization in LaSrCoRuO(6)

dc.contributor.author	Murthy, P.S.R.
dc.contributor.author	Priolkar, K.R.
dc.contributor.author	Bhobe, P.A.
dc.contributor.author	Das, A.
dc.contributor.author	Sarode, P.R.
dc.contributor.author	Nigam, A.K.
dc.date.accessioned	2015-06-04T02:56:43Z
dc.date.available	2015-06-04T02:56:43Z
dc.date.issued	2010
dc.identifier.citation	Journal of Magnetism and Magnetic Materials 322(22); 2010; 3704-3709.	en_US
dc.identifier.uri	http://dx.doi.org/10.1016/j.jmmm.2010.07.030
dc.identifier.uri	http://irgu.unigoa.ac.in/drs/handle/unigoa/2497
dc.description.abstract	This paper reports effect of thermally induced disorder on the magnetic properties of LaSrCoRuO6 double perovskite. While the ordered sample is antiferromagnetic, the disordered sample exhibits negative values of magnetization measured in low applied fields. Isothermal magnetization on this sample shows hysteresis due to the presence of ferromagnetic interactions. Based on neutron diffraction and X-ray absorption fine structure (XAFS) studies, these results have been interpreted to be due to disorder in site occupancy of Co and Ru leading to octahedral distortions and formation of Ru-O-Ru ferromagnetic linkages. Below 150 K these ferromagnetic Ru spins polarize the Co spins in a direction opposite to that of the applied field resulting in observed negative magnetization.	en_US
dc.publisher	Elsevier	en_US
dc.subject	Physics	en_US
dc.title	Disorder induced negative magnetization in LaSrCoRuO(6)	en_US
dc.type	Journal article	en_US
dc.identifier.impf	y