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Issue 5, 2003
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Synthesis and characterisation of Sr1.2Nd0.8Mn0.6Rh0.4O4

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Abstract

A polycrystalline sample of Sr1.2Nd0.8Mn0.6Rh0.4O4 has been synthesised and characterised by neutron diffraction, dc magnetometry, muon spectroscopy and magnetotransport measurements. It is an n = 1 member of the Ruddlesden–Popper (RP) An + 1BnO3n + 1 family, having tetragonal (I4/mmm) symmetry [a = 3.86418(6), c = 12.4414(2) Å]. Rh and Mn cations are disordered over the six-coordinate sites within the perovskite layers of the RP structure and the A sites are occupied by a disordered distribution of Nd and Sr. In contrast to the analogous compound Sr1.2La0.8Mn0.6Rh0.4O4, which showed long range ferromagnetic ordering in an applied field at 2 K, a spin-glass transition was observed at 16 K for the Nd-containing compound. No long range magnetic order was observed at 2 K. A maximum magnetoresistance of ∼30% in a 140 kOe field was found at 125 K.

Graphical abstract: Synthesis and characterisation of Sr1.2Nd0.8Mn0.6Rh0.4O4

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Publication details

The article was received on 18 Dec 2002, accepted on 13 Mar 2003 and first published on 28 Mar 2003


Article type: Paper
DOI: 10.1039/B212603F
Citation: J. Mater. Chem., 2003,13, 1166-1172
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    Synthesis and characterisation of Sr1.2Nd0.8Mn0.6Rh0.4O4

    D. J. Gallon, P. D. Battle, S. J. Blundell, A. I. Coldea, M. J. Rosseinsky and C. Steer, J. Mater. Chem., 2003, 13, 1166
    DOI: 10.1039/B212603F

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