Dynamical Properties of Charged Stripes inLa2−xSrxCuO4

• DOI: 10.1103/physrevlett.95.117002
• Publication Date: 2005-09-06T22:18:18Z
• Authors: L. Tassini; F. Venturini; Q.-M. Zhang; R. Hackl; N. Kikugawa; T. Fujita
• Keywords: Superconductivity (cond-mat.supr-con); Condensed Matter - Strongly Correlated Electrons; Strongly Correlated Electrons (cond-mat.str-el); 530: Physik; Condensed Matter - Superconductivity; Strongly Correlated Electron; 0103 physical sciences; FOS: Physical sciences; 01 natural sciences

Inelastic light-scattering spectra of underdoped ${\mathrm{La}}_{2\ensuremath{-}x}{\mathrm{Sr}}_{x}{\mathrm{CuO}}_{4}$ single crystals are presented which provide direct evidence the formation quasi-one-dimensional charged structures in two-dimensional ${\mathrm{CuO}}_{2}$ planes. The stripes manifest themselves a Drude-like peak at low energies and temperatures. selection rules allow us to determine orientation be along diagonals $x=0.02$ principal axes $x=0.10$. electron-lattice interaction determines correlation length turns out larger compound classes with lower superconducting transition Temperature is only scale response different doping levels demonstrating importance quantum critical behavior.