Quadruple superstructure with antiferroic ionic displacements in B i1-x S mxFe O3

Y. Horibe, M. Nomoto, T. Inoshita, K. Watanabe, S. W. Cheong, Y. Inoue, Y. Koyama

Research output: Contribution to journalArticle

Abstract

Crystallographic and morphologic features of quadruple and double superstructures in Bi1-xSmxFeO3 with 0≤x≤0.40 were investigated by x-ray powder diffraction and transmission electron microscopy. The presence of a quadruple superstructure accompanied by antiferroic ionic displacements was found near the morphotropic phase boundary between the R3c phase (0<x<0.10) and the Pnma phase (0.25≤x≤0.40). The quadruple superlattice phase coexists with a ferroelectric R3c phase at x=0.15. These superstructures were found to originate from the freezing of multiple phonon modes related to transverse wave ionic displacements. These findings provide further insight towards understanding the complexity of rare-earth-doped BiFeO3.

Original languageEnglish
Article number024105
JournalPhysical Review B
Volume100
Issue number2
DOIs
Publication statusPublished - 2019 Jul 12

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Phase boundaries
Freezing
Rare earths
Ferroelectric materials
Transmission electron microscopy
X rays
transverse waves
freezing
rare earth elements
transmission electron microscopy
diffraction
x rays
Powder Diffraction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Horibe, Y., Nomoto, M., Inoshita, T., Watanabe, K., Cheong, S. W., Inoue, Y., & Koyama, Y. (2019). Quadruple superstructure with antiferroic ionic displacements in B i1-x S mxFe O3. Physical Review B, 100(2), [024105]. https://doi.org/10.1103/PhysRevB.100.024105

Quadruple superstructure with antiferroic ionic displacements in B i1-x S mxFe O3. / Horibe, Y.; Nomoto, M.; Inoshita, T.; Watanabe, K.; Cheong, S. W.; Inoue, Y.; Koyama, Y.

In: Physical Review B, Vol. 100, No. 2, 024105, 12.07.2019.

Research output: Contribution to journalArticle

Horibe, Y, Nomoto, M, Inoshita, T, Watanabe, K, Cheong, SW, Inoue, Y & Koyama, Y 2019, 'Quadruple superstructure with antiferroic ionic displacements in B i1-x S mxFe O3', Physical Review B, vol. 100, no. 2, 024105. https://doi.org/10.1103/PhysRevB.100.024105
Horibe Y, Nomoto M, Inoshita T, Watanabe K, Cheong SW, Inoue Y et al. Quadruple superstructure with antiferroic ionic displacements in B i1-x S mxFe O3. Physical Review B. 2019 Jul 12;100(2). 024105. https://doi.org/10.1103/PhysRevB.100.024105
Horibe, Y. ; Nomoto, M. ; Inoshita, T. ; Watanabe, K. ; Cheong, S. W. ; Inoue, Y. ; Koyama, Y. / Quadruple superstructure with antiferroic ionic displacements in B i1-x S mxFe O3. In: Physical Review B. 2019 ; Vol. 100, No. 2.
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