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

doi:10.1063/1.4726245

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

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Article number	112622
Journal	Journal of Applied Physics
Volume	111
Issue number	11
DOIs	https://doi.org/10.1063/1.4726245
Publication status	Published - 2012 Jun 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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abstract = "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.",

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T1 - In-plane Cu-O bond distribution and charge inhomogeneity in La 2-xSr xCuO 4 as a function of doping

AU - Saini, N. L.

AU - Oyanagi, H.

AU - Adachi, T.

AU - Noji, T.

AU - Sato, H.

AU - Koike, Y.

PY - 2012/6/1

Y1 - 2012/6/1

N2 - 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.

AB - 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.

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