Infrared Hall effect in underdoped and optimally doped LSCO

2005/10/28 by L. Shi, Lingyun Shi, D. Schmadel +9 · 1 citation
Engineering · Materials Science · Physics and Astronomy · #FOS: Physical sciences #Magnetic and transport properties of perovskites and related materials #Magneto-Optical Properties and Applications #Physics of Superconductivity and Magnetism #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.str-el

paper · pdf · doi:10.48550/arxiv.cond-mat/0510794

openalex publication_date 2005/10/28 · arxiv created 2005/10/31 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We report a study of magneto-optical properties in the mid-infrared region of a series of La_2-xSr_xCuO₄ samples with hole doping level ranging from severely underdoped (x=0.03)to optimally doped (x=0.15). The Faraday rotation and circular dichroism are measured in a magnetic field of 8 Tesla and in a temperature range between 30K and 300K. The doping and temperature dependence of infrared Hall angle is found to be understood within a simple Drude model. A significant increase of Hall frequency is observed when the hole doping level is reduced from optimal doping, which is compared with models of the pseudogap.

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• Concerning two-gap ARPES data, the pseudogap, 2-q striping and magnetc circular dichroism from the negative-U HTSC perspective

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