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Synthesis and properties of LnBaFeCoO5 + δ (Ln = Nd, Sm, Gd)

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Abstract

LnBaFeCoO5 + δ (Ln = Nd, Sm, Gd) layered oxides have been synthesized and their crystal structure, thermal stability, thermal expansion, electrical conductivity, thermoelectric power, and magnetic susceptibility have been studied. The oxides have a tetragonal structure (sp. gr. P4/mmm) with unit-cell parameters a = 0.3909(2) nm and c = 0.7695(6) nm for Ln = Nd (δ = 0.65), a = 0.3908(3) nm and c = 0.7662(6) nm for Ln = Sm (δ = 0.37), and a = 0.3908(2) nm and c = 0.7613(6) nm for Ln = Gd (δ = 0.37). The LnBaFeCoO5 + δ compounds are antiferromagnetic p-type semiconductors. With decreasing Ln3+ ionic radius, their electrical conductivity and linear thermal expansion coefficient decrease and their thermoelectric power and antiferromagnetic ordering temperature increase. Near 518–653 K, the linear thermal expansion coefficient of the LnBaFeCoO5 + δ oxides increases from (12.9–16.6) × 10−6 to (19.3–26.5) × 10−6 K−1, which is due to the release of weakly bound oxygen from the oxides. We have determined parameters of charge transport in the [Fe(Co)O2] layers in the crystal structure of the LnBaFeCoO5 + δ phases.

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References

  1. Frontera, C., Garcia-Muňoz, J.L., Llobet, A., et al., Spin State Transition: The Origin of Structural, Magnetic, and Metal-Insulator Transitions in GdBaCo2O5 + δ (δ ≈ 0.5), J. Magn. Magn. Mater., 2002, vols. 242–245, pp. 751–753.

    Article  Google Scholar 

  2. Roy, S., Dubenko, I.S., Khan, M., et al., Magnetic Properties of Perovskite-Derived Air-Synthesized RBaCo2O5 + δ (R = La-Ho) Compounds, Phys. Rev. B: Condens. Matter Mater. Phys., 2005, vol. 71, paper 024 419.

  3. Klyndyuk, A., Layered Perovskite-Like Oxides 0112 Type: Structure, Properties and Possible Applications, Advances in Chemistry Research, Taylor, J.C., Ed., New York: Nova Science, 2010, vol. 5, pp. 59–105.

    Google Scholar 

  4. Taskin, A.A., Lavrov, A.N., and Ando, Y., Origin of the Large Thermoelectric Power in Oxygen-Variable RBaCo2O5 + x (R = Gd, Nd), Phys. Rev. B: Condens. Matter Mater. Phys., 2006, vol. 73, paper 121 101.

  5. Chang, A., Skinner, S.J., and Kilner, J.A., Electrical Properties of GdBaCo2O5+x for ITSOFC Applications, Solid State Ionics, 2006, vol. 177, pp. 2009–2011.

    Article  CAS  Google Scholar 

  6. Taskin, A.A., Lavrov, A.N., and Ando, Y., Fast Oxygen Diffusion in A-Site Ordered Perovskites, Prog. Solid State Chem., 2007, vol. 35, pp. 481–490.

    Article  CAS  Google Scholar 

  7. Ruiz-Gonzalez, L., Boulahya, K., Parras, M., et al., Recurrent Intergrowth in the Topotactic Reduction Process of LaBaCuCoO5.2, Chem. Eur. J., 2002, vol. 8, pp. 5694–5700.

    Article  CAS  Google Scholar 

  8. Anderson, P.S., Kirk, C.A., Knudsen, J., et al., Structural Characterization of REBaCo2O6 − δ Phases (RE = Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho), Solid State Sci., 2005, vol. 7, pp. 1149–1156.

    Article  CAS  Google Scholar 

  9. Itoh, M., Hashimoto, J., Yamaguchi, S., and Tokura, Y., Spin State and Metal-Insulator Transition in LaCoO3 and RCoO3 (R = Nd, Sm and Eu), Phys. B (Amsterdam, Neth.), 2000, vols. 281–282, pp. 510–511.

    Google Scholar 

  10. Karen, P., Chemistry and Thermodynamics of the Twin Charge-Ordering Transitions in RBaFe2O5 + w Series, J. Solid State Chem., 2004, vol. 177, pp. 281–292.

    Article  CAS  Google Scholar 

  11. Linden, J., Kochi, M., Lehmus, K., et al., Interplay between Cu and Fe Valences in BaR(Cu0.5Fe0.5)2O5 + δ Double Perovskites with R = Lu, Yb, Y, Eu, Sm, Nd, and Pr, J. Solid State Chem., 2002, vol. 166, pp. 118–127.

    Article  CAS  Google Scholar 

  12. Klyndyuk, A.I. and Chizhova, E.A., Properties of RBaCuFeO5 + δ (R = Y, La, Pr, Nd, Sm-Lu), Inorg. Mater., 2006, vol. 42, no. 5, pp. 550–561.

    Article  CAS  Google Scholar 

  13. Zhou, Q., He, T., He, Q., and Ji, Y., Electrochemical Performances of LaBaCuFeO5 + x and LaBaCuCoO5 + x As Potential Cathode Materials for Intermediate-Temperature Solid Oxide Fuel Cells, Electrochem. Commun., 2009, vol. 11, pp. 80–83.

    Article  CAS  Google Scholar 

  14. Zhu, Z., Tao, Z., Bi, L., and Liu, W., Investigation of SmBaCuCoO5 + δ Double-Perovskite As Cathode for Proton-Conducting Solid Oxide Fuel Cells, Mater. Res. Bull., 2010, vol. 45, pp. 1771–1774.

    Article  CAS  Google Scholar 

  15. Klyndyuk, A.I., New Perovskite Oxides LaBaMCoO5 + δ (M = Fe, Cu): Synthesis, Structure, and Properties, Phys. Solid State, 2009, vol. 51, no. 2, 270–274.

    Article  CAS  Google Scholar 

  16. Klyndyuk, A.I. and Chizhova, E.A., Structure and Electrophysical Properties of Ferrocobaltites LnBaFeCoO5 + δ (Ln = Tb, Dy, Ho, Y), Phys. Solid State, 2009, vol. 51, no. 4, pp. 657–661.

    Article  CAS  Google Scholar 

  17. Chizhova, E.A. and Klyndyuk, A.I., Effect of Cation Composition on the Properties of the LaBaCuFeO5 + δ Ferrocuprate, Vestsi Akad. Navuk Belarusi, Ser. Khim. Navuk, 2007, no. 4, pp. 11–15.

  18. Tripathi, A.K. and Lal, H.B., Electrical Transport in Rare-Earth Orthochromites, Mater. Res. Bull., 1980, vol. 15, no. 2, pp. 233–242.

    Article  CAS  Google Scholar 

  19. Shannon, R.D. and Prewitt, C.T., Revised Values of Effective Ionic Radii, Acta Crystallogr., Sect. B: Struct. Crystallogr. Cryst. Chem., 1969, vol. 25, no. 5, pp. 946–960.

    Article  Google Scholar 

  20. Klyndyuk, A.I. and Chizhova, E.A., Properties of Perovskite-Like Phases LnBaCuFeO5 + δ (Ln = La, Pr), Glass Phys. Chem., 2008, vol. 34, no. 3, pp. 313–318.

    Article  CAS  Google Scholar 

  21. Atanassova, Y.K., Popov, V.N., Bogachev, G.G., et al., Raman- and Infrared-Active Phonons in YBaCuFeO5: Experimental and Lattice Dynamics, Phys. Rev. B: Condens. Matter Mater. Phys., 1993, vol. 47, no. 22, pp. 15 201–15 207.

    Article  CAS  Google Scholar 

  22. Klyndyuk, A.I., Thermal and Chemical Expansion of LnBaCuFeO5 + δ (Ln = La, Pr, Nd) Ferrocuprates and LaBa0.75Sr0.25CuFeO5 + δ Solid Solution, Russ. J. Inorg. Chem., 2007, vol. 52, no. 9, pp. 1343–1349.

    Article  Google Scholar 

  23. Mott, N. and Davis, E., Electronic Processes in Non-Crystalline Materials, Oxford: Oxford Univ. Press, 1979, 2nd ed, vol. 1.

    Google Scholar 

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  1. Belarussian State Technological University, ul. Sverdlova 13a, Minsk, 220050, Belarus

    A. I. Klyndyuk & E. A. Chizhova

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  1. A. I. Klyndyuk
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  2. E. A. Chizhova
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Correspondence to A. I. Klyndyuk.

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Original Russian Text © A.I. Klyndyuk, E.A. Chizhova, 2013, published in Neorganicheskie Materialy, 2013, Vol. 49, No. 3, pp. 326–332.

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Klyndyuk, A.I., Chizhova, E.A. Synthesis and properties of LnBaFeCoO5 + δ (Ln = Nd, Sm, Gd). Inorg Mater 49, 319–324 (2013). https://doi.org/10.1134/S0020168513030084

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