In-plane Cu-O bond distribution and charge inhomogeneity in La 2-xSr xCuO 4 as a function of doping

N. L. Saini, H. Oyanagi, T. Adachi, T. Noji, H. Sato, Y. Koike

研究成果: Article査読


We report in-plane Cu-O atomic displacements as a function of doping in the La 2-xSr xCuO 4 system, determined by polarized Cu K-edge extended x-ray absorption fine structure measurements. We find a wide distribution of the Cu-O bonds showing a single peak asymmetric function for the system at low doping, which gets two peak function for the underdoped and optimally doped superconducting phases before turning to a single peak function for the overdoped phase. The results provide a direct evidence of critical local lattice fluctuations for an optimum transition temperature in the superconducting phases hosting quantum stripes.

ジャーナルJournal of Applied Physics
出版ステータスPublished - 2012 6 1

ASJC Scopus subject areas

  • 物理学および天文学(全般)


「In-plane Cu-O bond distribution and charge inhomogeneity in La <sub>2-x</sub>Sr <sub>x</sub>CuO <sub>4</sub> as a function of doping」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。