Effect of B-site Dopants on Magnetic and Transport Properties of LaSrCoRuO$_6$

Details Effect of B-site Dopants on Magnetic and Transport Properties of LaSrCoRuO$_6$ Effect of B-site Dopants on Magnetic and Transport Properties of LaSrCoRuO$_6$

2010-11-11

arxiv.org/abs/1011.2555v1

European Physical Journal B (2010)

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1140/epjb/e2010-10475-3

Effect of Co, Ru and Cu substitution at B and B' sites on the magnetic and transport properties of LaSrCoRuO$_6$ have been investigated. All the doped compositions crystallize in the monoclinic structure in the space group $P2_1/n$ indicating a double perovskite structure. While the magnetization and conductivity increase in Co and Ru doped compounds, antiferromagnetism is seen to strengthen in the Cu doped samples. These results are explained on the basis of a competition between linear Co-O-Ru-O-Co and perpendicular Co-O-O-Co antiferromagnetic interactions and due to formation of Ru-O-Ru ferromagnetic networks.

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