Retrograde doping dependence of charge order in La_1.8-xEu_0.2Sr_xCuO₄

2021/11/08 by Manfred Bucher, Bucher, Manfred
Earth and Planetary Sciences · Materials Science · Physics and Astronomy · #FOS: Physical sciences #General Physics (physics.gen-ph) #High-pressure geophysics and materials #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism

paper · pdf · doi:10.48550/arxiv.2111.05124

openalex publication_date 2021/11/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Comparison with La_2-z-xNd_zSr_xCuO₄ (z=0, 0.4) shows that the retrograde doping dependence of charge order in La_1.8-xEu_0.2Sr_xCuO₄ must be caused by a mechanism transcending the common charge-order generation in the hole-doped lanthanum cuprates. This could be a bond-stretching phonon with comparable momentum, q ∼ 0.24 r.l.u., as observed in La_1.675Eu_0.2Sr_0.125CuO₄.

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