Journal of Electronic Materials

, Volume 41, Issue 6, pp 1559–1563 | Cite as

Thermoelectric Properties of Electron-Doped SrMnO3 Single Crystals with Perovskite Structure

Article

Abstract

Thermoelectric properties have been investigated for single crystals of Sr(Mn1−x Mo x )O3 with the perovskite structure. Similar to (Sr1−x Ce x )MnO3, the Seebeck coefficient for lightly electron-doped compounds (x ≤ 0.01) is enhanced upon G-type antiferromagnetic ordering, while maintaining metallic conduction. This results in enhancement of the figure of merit (ZT). On the other hand, the Seebeck coefficient for the more electron-doped compound (x = 0.025) changes sign from negative to positive within a spin and orbital ordered phase (with C-type antiferromagnetic configuration and Mn 3z 2 − r 2 type orbital order) as the temperature is lowered, whereas the Hall coefficient remains negative in the whole temperature range. The enhancement of the ZT value in the G-type antiferromagnetic phase implies the possibility for improvement of the thermoelectric efficiency by using the coupling between charge, spin, orbital, and lattice degrees of freedom in strongly correlated electron systems.

Keywords

Perovskite manganite thermoelectric properties magnetic and orbital ordering single crystals 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    I. Terasaki, Y. Sasago, and K. Uchinokura, Phys. Rev. B 56, R12685 (1997).CrossRefGoogle Scholar
  2. 2.
    K. Koumoto, I. Terasaki, and R. Funahashi, MRS Bull. 31, 206 (2006).CrossRefGoogle Scholar
  3. 3.
    H. Ohta, K. Sugiura, and K. Koumoto, Inorg. Chem. 47, 8429 (2008).CrossRefGoogle Scholar
  4. 4.
    W. Koshibae, K. Tsutsui, and S. Maekawa, Phys. Rev. B 62, 6869 (2000).CrossRefGoogle Scholar
  5. 5.
    W. Koshibae and S. Maekawa, Phys. Rev. Lett. 87, 236603 (2001).CrossRefGoogle Scholar
  6. 6.
    Y. Wang, N.S. Rogado, R.J. Cava, and N.P. Ong, Nature 423, 425 (2003).CrossRefGoogle Scholar
  7. 7.
    M. Uchida, K. Oishi, M. Matsuo, W. Koshibae, Y. Onose, M. Mori, J. Fujioka, S. Miyasaka, S. Maekawa, and Y. Tokura, Phys. Rev. B 83, 165127 (2011).CrossRefGoogle Scholar
  8. 8.
    J. Hejtmánek, Z. Jirák, M. Maryško, C. Martin, A. Maignan, M. Hervieu, and B. Raveau, Phys. Rev. B 60, 14057 (1999).CrossRefGoogle Scholar
  9. 9.
    A. Maignan, C. Martin, C. Autret, M. Hervieu, B. Raveau, and J. Hejtmanek, J. Mater. Chem. 12, 1806 (2002).CrossRefGoogle Scholar
  10. 10.
    A. Maignan, S. Hébert, L. Pi, D. Pelloquin, C. Martin, C. Michel, M. Hervieu, and B. Raveau, Cryst. Eng. 5, 365 (2002).CrossRefGoogle Scholar
  11. 11.
    L. Pi, S. Hébert, A. Maignan, and B. Raveau, Phys. Rev. B 67, 024430 (2003).CrossRefGoogle Scholar
  12. 12.
    L. Bocher, M.H. Aguirre, D. Longvinovich, A. Shkabko, R. Robert, M. Trottmann, and A. Weidenkaff, Inorg. Chem. 18, 8077 (2008).CrossRefGoogle Scholar
  13. 13.
    S. Kolesnik, B. Babroeski, and O. Chmaissem, Phys. Rev. B 78, 214425 (2008).CrossRefGoogle Scholar
  14. 14.
    H. Sakai, S. Ishiwata, D. Okuyama, A. Nakao, H. Nakao, Y. Murakami, Y. Taguchi, and Y. Tokura, Phys. Rev. B 82, 180409 (R) (2010).CrossRefGoogle Scholar
  15. 15.
    J.M. Rondinelli, A.S. Eidelson, and N.A. Spaldin, Phys. Rev. B 79, 205119 (2009).CrossRefGoogle Scholar
  16. 16.
    S. Bhattacharjee, E. Bousquet, and P. Ghosez, Phys. Rev. Lett. 102, 117602 (2009).CrossRefGoogle Scholar
  17. 17.
    R.D. Shannon, Acta Cryst. A 32, 751 (1976).CrossRefGoogle Scholar
  18. 18.
    J.-S. Zhou and J.B. Goodenough, Phys. Rev. B 66, 052401 (2002).CrossRefGoogle Scholar

Copyright information

© TMS 2011

Authors and Affiliations

  • T. Suzuki
    • 1
  • H. Sakai
    • 1
  • Y. Taguchi
    • 1
    • 2
  • Y. Tokura
    • 1
    • 2
    • 3
    • 4
  1. 1.Cross-Correlated Materials Research Group (CMRG)RIKEN Advanced Science InstituteWakoJapan
  2. 2.Correlated Electron Research Group (CERG)RIKEN Advanced Science InstituteWakoJapan
  3. 3.Department of Applied PhysicsUniversity of TokyoTokyoJapan
  4. 4.Multiferroics Project, ERATOJapan Science and Technology Agency (JST)TokyoJapan

Personalised recommendations