Phase Diagram ofLa2−xSrxCuO4Probed in the Infared: Imprints of Charge Stripe Excitations

2002/03/27 by Andrea Lucarelli, A. Lucarelli, S. Lupi +14 · 73 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Antiferromagnetism #Charge (physics) #Condensed matter physics #Energy (signal processing) #Intensity (physics) #Magnetic and transport properties of perovskites and related materials #Optics #Phase (matter) #Phase diagram #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevlett.90.037002

published in Physical Review Letters 90(3), 037002 (American Physical Society) · 9 pages including figs. in pdf format

arxiv created 2002/03/27 · openalex publication_date 2003/01/23 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

While there is increasing evidence for antiferromagnetic (AF) ordering in the Cu-O planes of high-T_c superconductors, either static or fluctuating, there is no direct evidence so far for the charge stripes that should separate the AF domains. By investigating the optical response of La_2\ensuremath-xSr_xCuO₄ for 0\ensuremath≤x\ensuremath≤0.26 and 30\ensuremath≤T\ensuremath≤295 K, we identify strong far infrared peaks whose energy, width, and intensity are consistent with a scenario of charge stripe dynamics in the Cu-O planes.

Citations

• Raman scattering versus infrared conductivity: Evidence for one-dimensional conduction inLa2−xSrxCuO4
• Anomalous Optical Absorption in the Normal State of Overdoped Cuprates Near the Charge-Ordering Instability
• Evolution of a Polaron Band through the Phase Diagram ofNd2−xCexCuO4−y
• Anomalous Isotopic Effect Near the Charge-Ordering Quantum Criticality
• The pseudogap in high-temperature superconductors: an experimental survey

Cited by

• An extended infrared study of thep,Tphase diagram of thep-doped Cu–O plane