Charge ordering in low-doping rate A1-xBxMnO3 (A: La, Pr; B: Sr, Ca)

T. Inami, O. Hino, S. Nohdo, R. Kanao, N. Ikeda, Y. Yamada, S. Katano

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

We have found charge ordering in perovskite-type manganese oxides at low-carrier-doping region in neutron diffraction experiments. In La1-xSrxMnO3 (x = 0.1 and 0.15), we observed superlattice reflections at commensurate positions and the onset temperature Tp of the superlattice structure coincides with the low-temperature metal-toinsulator transition point. Pr1-xCaxMnO3 compounds are also studied at the stoichiometric concentration of x = 0.25. We observed diffuse satellite peaks indicating the existence of new charge-ordered state at this concentration.

Original languageEnglish
Pages (from-to)433-435
Number of pages3
JournalPhysica B: Condensed Matter
Volume241-243
DOIs
Publication statusPublished - 1997
Externally publishedYes

Keywords

  • (LaSr)MnO
  • Charge order
  • Jahn-Teller distortion
  • Metal-to-insulator transition

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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