Inplane and Interplane Charge Dynamics in Layered Manganite Crystals

  • T. Kimura
  • T. Okuda
  • Y. Tokura
Conference paper

Abstract

We have investigated the inplane and interplane charge dynamics in bilayered manganite crystals, La2–2xSr1+2xMn2O7 (0.3≤x≤0.5), which show the highly anisotropic charge-transport and magnetic properties, and the colossal magnetoresistance. In the layered magnetic system, the interplane as well as inplane charge dynamics is expected to critically depend on the interlayer magnetic coupling within and between the ferromagnetic- metallic (FM) MnO2 bilayers. The interlayer magnetic coupling shows the strong doping- level dependence, and is related to not only the magneto-transport properties but also the magneto-structural ones. We have also studied the low-temperature transport properties. The weak localization effect as evidenced by T 1/2-dependence of the inplane conductivity was observed for the ferromagnetic bilayered manganite, which indicates the layered magnetic system is a disordered three-dimensional metal in the ground state.

Keyword

Layered manganite Anisotropy Magnetoresistance 
This is a preview of subscription content, log in to check access.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Reference

  1. [1]
    Y. Moritomo, A. Asamitsu, H. Kuwahara, and Y. Tokura, Nature 380, 141 (1996).ADSCrossRefGoogle Scholar
  2. [2]
    J. Q. Li, Y. Matsui, T. Kimura, and Y. Tokura, Phys. Rev. B 57, R3205 (1998).ADSCrossRefGoogle Scholar
  3. [3]
    T. Kimura, Y. Tomioka, H. Kuwahara, A. Asamitsu, M. Tamura, and Y. Tokura, Science 274, 1698 (1996).ADSCrossRefGoogle Scholar
  4. [4]
    J. Z. Sun, W. J. Gallagher, P. R. Duncombe, L. Krusin-Elbaum, R. A. Altman, A. Gupta, Yu Lu, G. Q. Gong, and Gang Xiao, Appl. Phys. Lett. 69, 3266 (1996).ADSCrossRefGoogle Scholar
  5. [5]
    H. Y. Hwang, S-W. Cheong, N. P. Ong, and B. Batlogg, Phys. Rev. Lett. 77, 2041 (1996).ADSCrossRefGoogle Scholar
  6. [6]
    N. D. Mathur, G. Burnell, S. P. Isaac, T. J. Jackson, B.-S. Teo, O. J. L. MacManus-Driscoll, L. F. Cohen, J. E. Evetts, and M. G. Blamire, Nature 387, 266 (1997).ADSCrossRefGoogle Scholar
  7. [7]
    T. Kimura, Y. Tomioka, A. Asanütsu, and Y. Tokura, Phys. Rev. Lett. 81, 5920 (1998).ADSCrossRefGoogle Scholar
  8. [8]
    P. D. Battle, D. E. Cox, M. A. Green, J. E. Millburn, L. E. Spring, P. G. Radaelli, M. J. Rosseinsky, J. F. Vente, Chem. Mater. 9, 1042 (1997).CrossRefGoogle Scholar
  9. [9]
    D. N. Argyriou, J. F. Mitchell, C. D. Potter, S. D. Bader, R. Kleb, and J. D. Jorgensen, Phys. Rev. B 55, R11965 (1997).ADSCrossRefGoogle Scholar
  10. [10]
    T. G. Perring, G. Aeppli, T. Kimura, Y. Tokura, and M. A. Adams, Phys. Rev. B 58, R14693 (1998).ADSCrossRefGoogle Scholar
  11. [11]
    K. Hirota, Y. Moritomo, H. Fujioka, M. Kubota, H. Yoshizawa, and Y. Endoh, J. Phys. Soc. Jpn. 67, 3380 (1998).ADSCrossRefGoogle Scholar
  12. [12]
    M. Kubota, H. Fujioka, K. Ohoyama, K. Hirota, Y. Moritomo, H. Yoshizawa, and Y. Endoh, J. Phys. Chem. Solids (in press).Google Scholar
  13. [13]
    T. Kimura, R. Kumai, Y. Tokura, J. Q. Li, Y. Matsui, Phys. Rev. B 58, 11081 (1998).CrossRefGoogle Scholar
  14. [14]
    T. Okuda, T. Kimura, and Y. Tokura, Phys. Rev. B 60, 3370 (1999).ADSCrossRefGoogle Scholar
  15. [15]
    P. A. Lee and V. Ramakrishnan, Rev. Mod. Phys. 57, 287 (1985).ADSCrossRefGoogle Scholar

Copyright information

© Springer Japan 2000

Authors and Affiliations

  • T. Kimura
    • 1
  • T. Okuda
    • 1
  • Y. Tokura
    • 1
    • 2
  1. 1.Joint Research Center for Atom Technology (JRCAT)TsukubaJapan
  2. 2.Department of Applied PhysicsUniversity of TokyoTokyoJapan

Personalised recommendations