Synchrotron x-ray diffraction study of a charge stripe order in 1/8-doped La1.875Ba0.125-xSrxCuO4

H. Kimura, H. Goka, M. Fujita, Y. Noda, K. Yamada, N. Ikeda

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Lattice distortions associated with charge stripe order in 1/8 hole-doped La1.875Ba0.125-xSrxCuO4 are studied using synchrotron x-ray diffraction for x = 0.05 and x = 0.075. The propagation wave-vector and charge order correlation lengths are determined with a high accuracy, revealing that the oblique charge stripes in orthorhombic x = 0.075 crystal are more disordered than the aligned stripes in tetragonal x = 0.05 crystal. The twofold periodicity of lattice modulations along the c axis is explained by long-range Coulomb interactions between holes on neighboring CuO2 planes.

Original languageEnglish
Article number140503
Pages (from-to)1405031-1405034
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume67
Issue number14
Publication statusPublished - Apr 1 2003
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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