Abstract
The crystal structure and magnetic properties of a system of Pr0.5Sr0.5Co1 − x Mn x O3 solid solutions were studied by neutron diffraction and magnetization measurements. It is shown that, at a low manganese concentration, the structure can be described by the I/2a monoclinic space group; with increasing substitution level x the structure becomes orthorhombic. For x > 0.9 the crystal structure is tetragonal at high temperatures and the symmetry is lowered to orthorhombic with lowering the temperature. The substitution of cobalt for manganese leads to the destruction of long-range ferromagnetic order near x ∼ 0.25. A transition from the high-temperature ferromagnetic phase to the A-type low-temperature antiferromagnetic phase is observed at x ∼ 0.93 in the temperature range 110–160 K.
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Original Russian Text © V.V. Sikolenko, V.V. Efimov, I.O. Troyanchuk, D.V. Karpinskii, 2012, published in Poverkhnost’. Rentgenovskie, Sinkhrotronnye i Neitronnye Issledovaniya, 2012, No. 9, pp. 3–7.
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Sikolenko, V.V., Efimov, V.V., Troyanchuk, I.O. et al. Neutron diffraction studies of the magnetic properties of Pr0.5Sr0.5Co1 − x Mn x O3 solid solutions. J. Surf. Investig. 6, 713–717 (2012). https://doi.org/10.1134/S1027451012090133
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DOI: https://doi.org/10.1134/S1027451012090133