Abstract
The magnetic characteristics of a twin-free EuBaCo2O5.5 single crystal were studied. It is shown that Co ions exhibit an Ising-type behavior with an easy axis directed along the a axis in the temperature range from 2 K to T c (250 K). As the temperature decreases from 300 K, a number of magnetic phase transitions occur under magnetic fields H ∥ a. In the range where antiferromagnetic ordering of Co3+ ions exists, metamagnetic transitions were observed to occur in fields whose values were dependent on temperature. The strengths of competing interactions in the crystal are estimated.
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Original Russian Text © V.I. Gatalskaya, M. Baran, R. Szymczak, H. Szymczak, S.N. Barilo, G.L. Bychkov, S.V. Shiryaev, 2007, published in Fizika Tverdogo Tela, 2007, Vol. 49, No. 1, pp. 102–107.
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Gatalskaya, V.I., Baran, M., Szymczak, R. et al. Anisotropy of magnetic properties of a twin-free EuBaCo2O5.5 single crystal. Phys. Solid State 49, 107–112 (2007). https://doi.org/10.1134/S1063783407010180
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DOI: https://doi.org/10.1134/S1063783407010180