Abstract
In this work, we report synthesis and characterization of the new La2SrCo2FeO9 triple perovskite material. The samples were produced by the solid-state reaction method. The analyses of the XRD patterns were made by Rietveld refinement through the GSAS code. The results reveal that the material crystallizes in an orthorhombic complex perovskite, space group Immm (#71) with lattice parameters a=5.4314(3) Ǻ, b=5.4583(3) Ǻ and c=7.7018(2) Ǻ. SEM micrographs evidence a strongly diffused granular morphology with mean grain size of 2 μm and the EDX spectra show that the chemical composition of samples are in good agreement with the nominal values of the stoichiometric formula. 57Fe Mössbauer spectroscopy recorded at 300 K reveals two sites in concordance with the X-ray diffraction measurements, and its valence state is +3, as determined from the isomer shift found. At 4.2 K magnetic ordering with canting of the Fe moments is found. Measurements of the magnetization as a function of temperature permitted us to determine the ferromagnetic characteristic of material with an effective magnetic moment of 9.7μ B.
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs10948-012-1425-4/MediaObjects/10948_2012_1425_Fig1_HTML.gif)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs10948-012-1425-4/MediaObjects/10948_2012_1425_Fig2_HTML.jpg)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs10948-012-1425-4/MediaObjects/10948_2012_1425_Fig3_HTML.gif)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs10948-012-1425-4/MediaObjects/10948_2012_1425_Fig4_HTML.gif)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs10948-012-1425-4/MediaObjects/10948_2012_1425_Fig5_HTML.gif)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs10948-012-1425-4/MediaObjects/10948_2012_1425_Fig6_HTML.gif)
Similar content being viewed by others
References
Hazen, R.M.: Sci. Am. 258, 54 (1988)
Ortiz Diaz, O., Jayro Arbey Rodriguez, M., Fajardo, F., Landínez Téllez, D.A., Roa-Rojas, J.: Physica B 398, 248 (2007)
Philips, J.B., Majewski, P., Alff, L., Gross, R., Graf, T., Branst, M.S., Simon, J., Walther, T., Mader, W., Topwal, D., Sarma, D.D.: Phys. Rev. B 68, 144431 (2003)
Palkar, V.R., Malik, S.K.: Solid State Commun. 134, 783 (2005)
Lofland, S.E., Scabarozi, T., Moritomo, Y., Xu, Sh.: J. Magn. Magn. Mater. 260, 181 (2003)
Di Trolio, A., Larciprete, R., Testa, A.M., Fiorani, D., Imperatori, P., Turchini, S., Zema, N.: J. Appl. Phys. 100, 13907 (2006)
Larson, A.C., Von Dreele, R.B.: General Structure Analysis System (GSAS). Los Alamos National Laboratory Report LAUR, pp. 86–748 (2000)
Lufaso, M.W., Woodward, P.M.: Prediction of the crystal structures of perovskites using the software program spuds. Acta Crystallogr., B Struct. Crystallogr. Cryst. Chem. 57, 725 (2001)
Neov, L., Dabrowski Hofmann, M., Bouwmeester, H.J.M.: Appl. Phys. A 74, S664 (2002)
Kittel, C.: Introduction to Solid State Physics, 8th edn. University of California, Berkeley (2005)
Acknowledgements
This work was partially supported by Division of Investigations (National University of Colombia, Bogotá DC) and Brazilian agency CNPq.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Albornoz, J.C., Landínez Téllez, D.A., Roa-Rojas, J. et al. Structural and Magnetic Properties of the New La2SrCo2FeO9 Triple Perovskite. J Supercond Nov Magn 26, 2313–2317 (2013). https://doi.org/10.1007/s10948-012-1425-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10948-012-1425-4