Absence of an isotope effect in the magnetic resonance in high-Tcsuperconductors

2005/03/31 by S. Pailhès, P. Bourges, Y. Sidis +4 · 1 citation
Physics and Astronomy · #Advanced Condensed Matter Physics #Physics of Superconductivity and Magnetism #Rare-earth and actinide compounds #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.71.220507

published as Phys. Rev. B 71, 220507(R) (2005) · 3 figures

arxiv created 2005/05/16 · openalex publication_date 2005/06/14 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

An inelastic neutron-scattering experiment has been performed in the high-temperature superconductor YBa₂Cu₃O_6.89 to search for an oxygen-isotope shift of the well-known magnetic-resonance mode at 41 meV. Contrary to a recent prediction [I. Eremin et al., Phys. Rev. B 69, 094517 (2004)], a negligible shift (at best \ensuremath\leqslant+0.2\phantom\rule0.3em0exmeV) of the resonance energy is observed upon oxygen isotope substitution (¹⁶O\ensuremath→¹⁸O). This suggests a negligible spin-phonon interaction in the high-T_c cuprates at optimal doping.

Citations

• Theory of Superconductivity
• Two Resonant Magnetic Modes in an Overdoped HighTcSuperconductor

Cited by

• Characteristics of oxygen isotope substitutions in the quasiparticle spectrum of Bi 2 Sr 2 CaCu 2 O 8+δ

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