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Synthesis and Microstructural Analysis of Magnetic CaFe0.5Co0.5O3−δ Using Rietveld Method

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Abstract

Perovskite cobaltates are widely recognized as potential candidates for their applications in magnetic and magnetoresistive applications. In this report, pseudo-magnetic CaFe0.5Co0.5O3−δ was synthesized at ambient pressure. Various calcinations, heating times, and sintering temperatures were applied in order to achieve the optimized conditions. The optimal sintering temperature with excellent phase and microstructure was found at ∼1050 °C using CaCO3 as precursor. Rietveld analysis was carried out to solve and refine the XRD pattern of the final specimens. The sample with excellent refined values was solved in orthorhombic phase and pbcm space group. From the SEM and EDS analysis, the excellent grain growth with high densification and ABO3 structure was confirmed respectively.

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References

  1. Long, Y., Kaneko, Y., Ishiwata, S., Taguchi, Y., Okura, Y.: Synthesis of cubic SrCoO3 single crystal and its anisotropic magnetic and transport properties. J. Phys. Condens. Matter 23, 245601–245607 (2011)

    Article  ADS  Google Scholar 

  2. Pardo, V., Blaha, P., Iglesias, M., Schwarz, K., Baldomir, D., Arias, J.E.: Magnetic structure and orbital ordering in BaCoO3 from first-principles calculations. Phys. Rev. B 70, 144422–144427 (2004)

    Article  ADS  Google Scholar 

  3. Wang, X.L., Takayama-Muromachi, E.: Magnetic and transport properties of the layered perovskite system Sr2−y Y yCoO4 (0\(\leqslant \textit {y}\leqslant \)1). Phys. Rev. B 72, 064401–064408 (2005)

    Article  ADS  Google Scholar 

  4. Pei, J., Chen, G., Li, X., Li, Y.X., Zhou, N.: Molten salt synthesis and thermoelectric properties of Ca2Co2O5. Mater. Lett. 63, 1459–1461 (2009)

    Article  Google Scholar 

  5. Ali, Z., Ahmad, I.: Band profile comparison of the cubic perovskites CaCoO3 and SrCoO3. Journal of Elec. Materi. 42, 438–444 (2013)

    Article  ADS  Google Scholar 

  6. Sugiyama, J., Brewer, J.H., Ansaldo, E.J., Itahara, H., Dohmae, K., Seno, Y., Xia, C., Tani, T.: Hidden magnetic transitions in the thermoelectric layered cobaltite [Ca2CoO3]0.62[CoO2]. Phys. Rev B 68, 134423–134431 (2003)

    Article  ADS  Google Scholar 

  7. Takeuchi, T., Matoba, M., Aharen, T., Itoh, M.: Magnetic anomalies in NaxCoO2 (x = 0.75). Phys. B Condens. Matter 719, 312–313 (2002)

    Google Scholar 

  8. Singh, D.J.: Quantum critical behavior and possible triplet superconductivity in electron-doped CoO2 sheets. Phys. Rev. B 68, 020503–020507 (2003)

    Article  ADS  Google Scholar 

  9. Chen, D.P., Wang, X., Lin, C.T., Dou, S.X.: Single-crystal growth and anisotropic magnetic properties of nonstoichiometric three-layer sodium cobalt oxides. Phys. Rev. B 76, 134511–134517 (2007)

    Article  ADS  Google Scholar 

  10. Haerter, J.O., Peterson, M.R., Sriram Shastry, B.: Finite-temperature properties of the triangular lattice t −J model and applications to NaxCoO2. Phys. Rev. B 74, 245118–245130 (2006)

    Article  ADS  Google Scholar 

  11. Okabe, H., Matoba, M., Kyomen, T., Itoh, M.: First-principles study of electronic and magnetic structure in layered cobaltite Na0.75CoO2. J. Appl. Phys. 95, 6831–6833 (2004)

    Article  ADS  Google Scholar 

  12. Maignan, A., Martin, C., Nguyen, N., Raveau, B.: Magnetoresistance in the ferromagnetic metallic perovskite SrFe1−xCoxO3. Solid State Sci. 3, 57–63 (2001)

    Article  ADS  Google Scholar 

  13. Bezdicka, P., Foum, L., Wattiaux, A., Grenier, J.C., Pouchard, M.: Mosbauer characteristics of the Sr2CoFeO6 perovskite obtained by electrochemical oxidation. Solid State Comm. 91, 501–505 (1994)

    Article  ADS  Google Scholar 

  14. Yin, C., Liu, Q., Decourt, R., Pollet, M., Gaudin, E., Toulemonde, O.: Unusual oxidation states give reversible room temperature magnetocaloric effect on perovskite-related oxides SrFe0.5Co0.5O3. J. Solid State Chem. 184, 3228–3231 (2011)

    Article  ADS  Google Scholar 

  15. Kawasaki, S., Takano, M., Takeda, Y.: Ferromagnetic properties of SrFe1−xCoxO3 synthesized under high Pressure. J. Solid State Chem. 121, 174–180 (1996)

    Article  ADS  Google Scholar 

  16. Ramezanipour, F., Greedan, J.E., Grosvenor, A.P., Britten, J.F., Cranswick, L.M.D., Ovidiu Garlea, V.: Intralayer cation ordering in a brownmillerite superstructure: synthesis, crystal, and magnetic structures of Ca2FeCoO5,. Chem. Mater. 22, 6008–6020 (2010)

    Article  Google Scholar 

Download references

Acknowledgments

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (NO. 2015R1A2A2A01007973).

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Correspondence to Bon Heun Koo.

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Rehman, Z.U., Uzair, M., Hwan, N. et al. Synthesis and Microstructural Analysis of Magnetic CaFe0.5Co0.5O3−δ Using Rietveld Method. J Supercond Nov Magn 31, 833–839 (2018). https://doi.org/10.1007/s10948-017-4227-x

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  • DOI: https://doi.org/10.1007/s10948-017-4227-x

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