LaSrMnCoO6: A new cubic double perovskite oxide
Date
2003Author
Androulakis, J.Katsarakis, N.
Giapintzakis, John
Vouroutzis, N.
Pavlidou, E.
Chrissafis, K.
Polychroniadis, E. K.
Perdikatsis, V.
Source
Journal of Solid State ChemistryVolume
173Pages
350-354Google Scholar check
Keyword(s):
Metadata
Show full item recordAbstract
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 Fm3̄m at room temperature. Below 225K, 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 190K and variable range hopping above 190K. © 2003 Elsevier Science (USA). All rights reserved.