Structural effect on the static spin and charge correlations in La1.875Ba0.125-xSrxCuO4

M. Fujita, H. Goka, K. Yamada, M. Matsuda

研究成果: Article査読

36 被引用数 (Scopus)

抄録

We report the results of elastic neutron-scattering measurements performed on 1/8-hole-doped La1.875Ba0.125-xSrxCuO4 single crystals with x=0.05, 0.06, 0.075, and 0.085. In the low-temperature less-orthorhombic [(LTLO), Pccn symmetry] phase, the charge-density-wave (CDW) and spin-density-wave (SDW) wave vectors were found to tilt in a low-symmetric direction with one-dimensional anisotropy in the CuO2 plane, while they were aligned along the high-symmetry axis in the low-temperature tetragonal (P42/ncm symmetry) phase. The coincident direction of two wave vectors suggests a close relation between CDW and SDW orders. The SDW wave vector systematically deviates from the Cu-O bond direction in the LTLO phase upon Sr substitution and the tilt angle in the LTLO phase is smaller than that in the low-temperature orthorhombic phase (Bmab symmetry) with comparable in-plane orthorhombic distortion. These results demonstrate a correlation between the corrugated pattern of the CuO2 plane and the deviations.

本文言語English
論文番号184503
ページ(範囲)1845031-1845036
ページ数6
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
66
18
出版ステータスPublished - 2002 11 1
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

フィンガープリント

「Structural effect on the static spin and charge correlations in La<sub>1.875</sub>Ba<sub>0.125-x</sub>Sr<sub>x</sub>CuO<sub>4</sub>」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル