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Title: Dynamical properties of charged stripes in La(2-x)SrxCuO4
Authors : Tassini, L.
Venturini, Francesca
Zhang, Q. -M.
Hackl, R.
Kikugawa, N.
Fujita, T.
Published in : Physical Review Letters
Volume(Issue) : 95
Issue : 117002
Publisher / Ed. Institution : American Physical Society
Issue Date: 6-Sep-2005
License (according to publishing contract) : Licence according to publishing contract
Type of review: Peer review (Publication)
Language : English
Subjects : Strongly Correlated Electron
Subject (DDC) : 530: Physics
Abstract: 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.
Departement: School of Engineering
Organisational Unit: Institute of Applied Mathematics and Physics (IAMP)
Publication type: Article in scientific Journal
DOI : 10.1103/PhysRevLett.95.117002
ISSN: 0031-9007
Appears in Collections:Publikationen School of Engineering

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