2000/03/07 by R. S. Gonnelli, В. А. Степанов, V. A. Stepanov +17
Materials Science · Physics and Astronomy · #Electronic and Structural Properties of Oxides #FOS: Physical sciences #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #Superconductivity (cond-mat.supr-con) #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.cond-mat/0003100
4 RevTex pages, 4 EPS figures, submitted to Phys. Rev. B
arxiv created 2000/03/07 · openalex publication_date 2000/03/07 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present and discuss the results of measurements of the ab-plane resistivity of La2-xSrxCuO4 single crystals with small Sr contents (x=0.052-0.075). The resistivity was obtained in the temperature range between 4.2 K and 300 K by using an AC Van der Pauw technique. When the temperature is lowered, the rhoab(T) curves show a transition from a linear behaviour to a semiconducting-like one. The deviation from the linearity occurs at a doping-dependent temperature Tch. This effect can be interpreted as due to a progressive pinning of preexistent charge stripes. In the same framework, the appearance of anomalous sharp peaks in the rhoab(T) curves of superconducting samples just above Tc may be explained by a transition from a nematic to a more ordered smectic electronic stripe phase.