Microstructure of Ca3Co4O9 Single Crystals and Thin Films

Abstract

We present a comparative study of the microstructure of Ca3Co4O9 single crystals and c-axis oriented Ca3Co4O9 thin films grown on glass substrates. Though both crystals and films have similar values of Seekbeck coefficient and electric resistivity at room temperature, their microstructures are rather different. Extensive high resolution transmission electron microscopy (TEM) studies reveal that the films grown on glass substrates have abundant stacking faults, which is in contrast to the perfect crystalline structure found in the single crystal sample. The c-axis lattice constants derived from the x-ray diffraction (XRD) and TEM measurements for the single crystal sample and the thin film are virtually the same, suggesting that the thin film on the glass substrate was not strained.

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References

  1. 1.

    I. Terasaki, Y. Sasago, and K. Uchokura, Phys. Rev. B, 56, 12685–87 (1997).

    Article  Google Scholar 

  2. 2.

    S. Li, R. Funahashi, I. Matsubara, K. Ueno, and H. Yamada, J. Mater. Chem., 9, 1659–60 (1999).

    CAS  Article  Google Scholar 

  3. 3.

    R. Funahashi, I. Matsubara, and S. Sodeoka, Appl. Phys. Lett., 76 2385–87 (2000).

    CAS  Article  Google Scholar 

  4. 4.

    S. Hebert, S. Lambert, D. Pelloquin, and A. Maignan, Phys. Rev. B, 64, 172101 (2001).

    Article  Google Scholar 

  5. 5.

    D. Pelloquin, A. Maignan, S. Hebert, C. Martin, M. Hervieu, C. Michel, L. B. Wang, and B. Raveau, Chem. Mater., 14, 3100–05 (2002).

    CAS  Article  Google Scholar 

  6. 6.

    Y. Miyazaki, T. Miura, Y. Ono, and T. Kajitani, Jpn. J. Appl. Phys., 41, L849–51 (2002).

    CAS  Article  Google Scholar 

  7. 7.

    S. Li, R. Funahashi, I. Matsubara, K. Ueno, and H. Yamada, Chem. Mater., 12, 2424–27 (2000).

    CAS  Article  Google Scholar 

  8. 8.

    R. Funahashi, I. Matsubara, S. Sodeoka, H. Ikuta, T. Takeuchi, and U. Mizutani, Jpn. J. Appl. Phys., Part 2, 39, L1127–29 (2000).

    CAS  Article  Google Scholar 

  9. 9.

    Y. Miyazaki, K. Kudo, M. Akoshima, Y. Ono, Y. Koike, and T. Kajitani, Jpn. J. Appl. Phys., Part 2, 39, L531–33 (2000).

    CAS  Article  Google Scholar 

  10. 10.

    A. Masset, C. Michel, A. Maignan, M. Hervieu, O. Toulemonde, F. Studer, B. Raveau, and J. Hejtmanek, Phys. Rev. B, 62, 166–75 (2000).

    CAS  Article  Google Scholar 

  11. 11.

    M. Shikano and R. Funahashi, Appl. Phys. Lett., 82, 1851–53 (2003).

    CAS  Article  Google Scholar 

  12. 12.

    Y. Yoshida, T. Kawai, Y. Takai, and M. Yamaguchi, J. Ceram. Soc. Japan, 110, 1080 (2002).

    CAS  Article  Google Scholar 

  13. 13.

    I. Matsubara, R. Funahashi, and M. Shikano, Appl. Phys. Lett., 80, 4729–31 (2002).

    CAS  Article  Google Scholar 

  14. 14.

    H. Minami, K. Itaka, H. Kawaji, Q. J. Wang, H. Koinuma, M. Lippmaa, Appl. Surf. Sci., 197–198, 442–47 (2002).

    Article  Google Scholar 

  15. 15.

    H. W. Eng, W. Prellier, S. Hebert, D. Grebille, L. Mechin, and B. Mercey, J. Appl. Phys., 97, 013706 (2005).

    Article  Google Scholar 

  16. 16.

    L. D. Hicks and M. D. Dresselhaus, Phys. Rev. B, 47, 12727 (1993).

    CAS  Article  Google Scholar 

  17. 17.

    R. Venkatasubramanian, E. Siivola, T. Colpitts, and B. O’Quinn, Nature, 413, 597–603 (2001).

    CAS  Article  Google Scholar 

  18. 18.

    Y. F. Hu, E. Sutter, W. D. Si, and Qiang Li, Appl. Phys. Lett. 87, 171912 (2005).

    Article  Google Scholar 

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Correspondence to Y. F. Hu.

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Hu, Y.F., Sutter, E., Si, W.D. et al. Microstructure of Ca3Co4O9 Single Crystals and Thin Films. MRS Online Proceedings Library 886, 108 (2005). https://doi.org/10.1557/PROC-0886-F01-08

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