2004/06/30 by L. Tassini, F. Venturini, Francesca Venturini +7 · 4 citations
Materials Science · Medicine · Physics and Astronomy · Veterinary · #Actinomycetales infections and treatment #Advanced Condensed Matter Physics #Infectious Diseases and Mycology #Magnetic and transport properties of perovskites and related materials #Medicine and Dermatology Studies History #Physics of Superconductivity and Magnetism #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.95.117002
published as Phys. Rev. Lett. 95, 117002 (2005) · 4 pages, 5 figures, added references, minor changes in the text, two figures replaced, published in Phys. Rev. Lett
arxiv created 2006/06/08 · openalex publication_date 2008/01/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/04/28
Inelastic light-scattering spectra of underdoped La2-xSrxCuO4 single crystals are presented which provide direct evidence of the formation of quasi-one-dimensional charged structures in the two-dimensional CuO2 planes. The stripes manifest themselves in a Drude-like peak at low energies and temperatures. The selection rules allow us to determine the orientation to be along the diagonals at x=0.02 and along the principal axes at x=0.10. The electron-lattice interaction determines the correlation length which turns out to be larger in compound classes with lower superconducting transition temperatures. Temperature is the only scale of the response at different doping levels demonstrating the importance of quantum critical behavior.