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LaSrMnCoO6: a new cubic double perovskite oxide

Androulakis, John G, Katsarakis, Nicolas, J. Giapintzakis, N. Vouroutzis, Pavlídou, Eléni, K. Chrissafis, Polychroniadis, Efstathios K, Perdikatsis Vasilis

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URI: http://purl.tuc.gr/dl/dias/7A79E135-8D29-44FC-84B4-8FAB577AC694
Έτος 2003
Τύπος Δημοσίευση σε Περιοδικό με Κριτές
Άδεια Χρήσης
Λεπτομέρειες
Βιβλιογραφική Αναφορά J. Androulakis, N. Katsarakis, J. Giapintzakis, N. Vouroutzis, E. Pavlidou, K. Chrissafis, E. K. Polychroniadis, and V. Perdikatsis, "LaSrMnCoO6: a new cubic double perovskite oxide", J. Solid State Chem., vol. 173, no. 2, pp. 350-354, Jul. 2003. doi:10.1016/S00225-4596(03)00109-9 https://doi.org/10.1016/S0022-4596(03)00109-9
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Περίληψη

Single-phase polycrystalline powder samples of the double perovskite oxide LaSrMnCoO6 were synthesized by the Pechini (citrate-gel) technique. The structural, magnetic and electrical properties of the obtained powders were investigated by X-ray diffraction, electron microscopy, dc magnetization, ac susceptibility and dc resistivity measurements. The crystal structure of the new compound was found to be cubic of space group Full-size image (<1 K) at room temperature. Below 225 K, the samples exhibit ferrimagnetic behavior with a spin-glass-like character. Resistivity measurements indicate semiconducting behavior with two different conductivity mechanisms: thermally activated behavior below 190 K and variable range hopping above 190 K.

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