Growth, magnetic properties and Raman scattering of La2NiMnO6 single crystals

Details Growth, magnetic properties and Raman scattering of La2NiMnO6 single crystals Growth, magnetic properties and Raman scattering of La2NiMnO6 single crystals

2009-05-02

arxiv.org/abs/0905.0202v1

Physics

Condensed Matter

Materials Science

5 pages, 4 figures

Scientific paper

Millimeter size single crystals of double perovskite La2NiMnO6 (LNMO) were grown by the High Temperature Solution Growth Method. The magnetic measurements and polarized Raman spectra between 5 and 350K provide evidence that the crystals have high degree of Ni(2+)/Mn(4+)ordering, small amount of lattice defects and highest Tc = 288K reported so far for ferromagnetic double perovskites. At a microscopic level the crystals are heavily twinned and the effect of twinning on the Raman spectra is analyzed in detail.

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