Features of structural phase transition in La1-xSrFeO 3

M. Mogi, Y. Inoue, M. Arao, Y. Koyama

Research output: Contribution to journalConference article

5 Citations (Scopus)

Abstract

The structural phase transition in the insulating phase of La 1-xSrxFeO3 has been examined by X-ray powder diffraction. Based on the Rietveld analysis of the obtained profiles, the R3̄c-Pbnm structural transition was confirmed to take place in this oxide system. The interesting feature of the transition is that it is characterized by the appearance of the antiferroelectric displacement of the La/Sr atom, in addition to the change in the rotational-displacement pattern, R 25x+R25y+R25 z→R25x+R25y+M 3z. It is thus understood that the low-temperature Pbnm phase can be identified as an antiferroelectric phase in oxides having a simple perovskite structure.

Original languageEnglish
Pages (from-to)295-299
Number of pages5
JournalPhysica C: Superconductivity and its applications
Volume392-396
Issue numberPART 1
DOIs
Publication statusPublished - 2003 Oct 1
EventProceedings of the 15th International Symposium on Superconduc - Yokohama, Japan
Duration: 2002 Nov 112002 Nov 13

Keywords

  • LaSrFeO
  • Rietveld refinement
  • Structural phase transition
  • Transition temperature
  • X-ray powder diffraction

ASJC Scopus subject areas

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

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