2000/05/02 by Simon J. L. Billinge, S. J. L. Billinge, Billinge, S. J. L. +7
Physics and Astronomy · #FOS: Physical sciences #Magnetic properties of thin films #Physics of Superconductivity and Magnetism #Superconductivity (cond-mat.supr-con) #Theoretical and Computational Physics #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.cond-mat/0005032
8 pages, 7 figures, to appear in J. Supercond., proceedings of the conference "Major Trends in Superconductivity in the New Millenium, Klosters, Switzerland, April 1st-6th 2000"
arxiv created 2000/05/02 · openalex publication_date 2000/05/02 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present local structural evidence for the existence of charge inhomogeneities at low temperature in underdoped and optimally doped La2-xSrxCuO4. The inhomogeneities disappear for x > 0.2. The evidence for the charge inhomogeneities comes from an anomalous increase in the in-plane Cu-O bond length distribution in the underdoped samples as well as evidence for CuO6 octahedral tilt inhomogeneities in the intermediate range structure. Preliminary analysis of the temperature dependence of this phenomenon indicates that the inhomogeneities set in at temperatures in the range 60 K < Tco < 130 K which depends on doping.