Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
권호 표지
DOI QR코드

DOI QR Code

Effect of Partial Substitution of Magnetic Rare Earths for La on the Structure, Electric Transport And Magnetic Properties of Oxygen Deficient Phase LaSr2MnCrO7-δ

  • Received : 2013.01.29
  • Accepted : 2013.03.11
  • Published : 2013.06.20
Download PDF
⟨ Previous Next ⟩

Abstract

Intergrowth perovskite type complex oxides $La_{0.8}Ln_{0.2}Sr_2MnCrO_{7-{\delta}}$ (Ln=La, Nd, Gd, and Dy) have been synthesized by sol-gel method. Rietveld profile analysis shows that the phases crystallize with tetragonal unit cell in the space group I4/mmm. The unit cell parameters a and c decrease with decreasing effective ionic radius of the lanthanide ion. The magnetic studies suggest that the ferromagnetic interactions are dominant due to $Mn^{3+}$-O-$Mn^{4+}$ and $Mn^{3+}$-O-$Cr^{3+}$ double exchange interactions. Both Weiss constant (${\theta}$) and Curie temperature ($T_C$) increase with decreasing ionic radius of lanthanide ion. It was found that the transport mechanism is dominated by Mott's variable range hopping (VRH) model with an increase of Mott localization energy.

Keywords

References

  1. Moritomo, Y.; Asamitsu, A.; Kuwahara, H.; Tokura, Y.; Matsui, Y. Nature (London) 1996, 380, 141. https://doi.org/10.1038/380141a0
  2. Kimura, T.; Tomioka, Y.; Kuwahara, H.; Asamitsu, A.; Tamura, M.; Tokura, Y. Science 1996, 274, 1698. https://doi.org/10.1126/science.274.5293.1698
  3. Kimura, T.; Tokura, Y. Annu. Rev. Mater. Sci. 2000, 30, 451. https://doi.org/10.1146/annurev.matsci.30.1.451
  4. Zener, C. Phys. Rev. 1951, 82, 403. https://doi.org/10.1103/PhysRev.82.403
  5. de Gennes, P. G. Phys. Rev. 1960, 118, 141. https://doi.org/10.1103/PhysRev.118.141
  6. Goodenough, J. B. Phys. Rev. 1955, 100, 564. https://doi.org/10.1103/PhysRev.100.564
  7. Millis, A. J.; Littlewood, P. B.; Shraiman, B. I. Phys. Rev. Lett. 1995, 74, 5144. https://doi.org/10.1103/PhysRevLett.74.5144
  8. Maignan, A.; Damay, F.; Barnabe, A.; Martin, C.; Hervieu, M.; Raveau, B. Philos. Trans. R. Soc. London Ser. B 1998, 356, 1635. https://doi.org/10.1098/rsta.1998.0239
  9. Raveau, B.; Maignan, A.; Martin, C. J. Solid State Chem. 1997, 130, 162. https://doi.org/10.1006/jssc.1997.7373
  10. Barnabe, A.; Maignan, A.; Hervieu, M.; Damay, F.; Martin, C.; Raveau, B. App. Phys. Lett. 1997, 71, 3907. https://doi.org/10.1063/1.120540
  11. Zhang, R. L.; Zhao, B. C.; Song, W. H.; Ma, Y. Q.; Yang, J.; Sheng, Z. G.; Dai, J. M. J. Appl. Phys. 2004, 96, 4965. https://doi.org/10.1063/1.1794907
  12. Yu, G.; Xu, B.; Xiong, J.; Liu, X.; Liu, L.; Yuan, S. J. Mag. Mag. Mat. 2011, 323, 1925. https://doi.org/10.1016/j.jmmm.2011.01.042
  13. Singh, D.; Singh, R. J. Chem. Sci. 2010, 122, 807. https://doi.org/10.1007/s12039-010-0068-x
  14. Mahesh, R.; Mahendiran, R.; Raychaudhuri, A. K.; Rao, C. N. R. J. Solid State Chem. 1995, 114, 297. https://doi.org/10.1006/jssc.1995.1045
  15. Hwang, H. Y.; Cheong, S. W.; Radaelli, P. G.; Marezio, M.; Batlogg, B. Phy. Rev. Lett. 1995, 75, 914. https://doi.org/10.1103/PhysRevLett.75.914
  16. Maignan, A.; Simon, C.; Caignaert, V.; Raveau, B. Solid State Comm. 1995, 96, 623. https://doi.org/10.1016/0038-1098(95)00538-2
  17. Dhahri, A.; Dhahri, J.; Dhahri, E. J. Alloys Compds. 2010, 489, 9. https://doi.org/10.1016/j.jallcom.2009.09.063
  18. Mazaheri, M.; Akhavan, M. J. Mag. Mag. Mat. 2010, 322, 3255. https://doi.org/10.1016/j.jmmm.2010.06.003
  19. Larson, A. C.; Von Dreele, R. B. General Structure Analysis System (GSAS), Los Alamos National Laboratory Report LAUR 2004, 86- 748.
  20. Ruddlesden, S. N.; Popper, P. Acta Cryst. 1958, 11, 54. https://doi.org/10.1107/S0365110X58000128
  21. Dann, S. E.; Weller, M. T.; Curie, D. B. J. Solid State Chem. 1992, 97, 179. https://doi.org/10.1016/0022-4596(92)90023-O
  22. Klung, H. P.; Alexander, L. E. X-ray Diffraction Procedures: For Polycrystalline and Amorphous Materials; John Wiley and Sons Inc.: Canada, 1954.
  23. Taguchi, H. J. Solid State Chem. 1997, 131, 108. https://doi.org/10.1006/jssc.1997.7355
  24. Maignan, A.; Martin, C.; Damay, F.; Hervien, M.; Raveau, B. J. Magn. Magn. Mat. 1998, 188, 185. https://doi.org/10.1016/S0304-8853(98)00161-9
  25. Zhang, J.; Wang, F.; Zhang, P.; Yan, Q. J. Phys.: Condens. Matter 1999, 11, 2413. https://doi.org/10.1088/0953-8984/11/11/011
  26. Sharma, I. B.; Singh, D.; Magotra, S. K. J. Alloys Compds. 1998, 269, 13. https://doi.org/10.1016/S0925-8388(98)00153-4
  27. Cullity, B. D. Elements of X-ray diffraction Reading, 2nd ed.; Addision-Wesley Publishing Co.

Cited by

  1. Effect of size disorder on the structure and magnetic properties of La0.3R0.2Sr0.5Ti0.5Fe0.5O3 (R = La, Nd, Gd, and Dy) compounds vol.76, pp.1, 2015, https://doi.org/10.1007/s10971-015-3764-7