Difficulty in the Fermi-Liquid-Based Theory for the In-Plane Magnetic Anisotropy in Untwinned High-T_c Superconductor

dc.creatorZhao, Hou-Jun
dc.creatorLi, Jun
dc.date2007-09-30
dc.date.accessioned2026-07-07T08:33:10Z
dc.date.available2026-07-07T08:33:10Z
dc.descriptionRecently, Eremin and Manske [1] presented a oneband Fermi-liquid theory for the in-plane magnetic anisotropy in untwinned high-Tc superconductor YBa2Cu3O6:85 (YBCO). They claimed that they found good agreement with inelastic neutron scattering (INS) spectra. In this Comment, we point out that their conclusion on this important problem may be questionable due to an error in logic about the orthorhombicity delta_0 characterizing the lattice structure of YBCO. In Ref. [1], a single band at delta_0>0 is proved to be in accordance with the angle resolved photoemission spectroscopy (ARPES) on untwinned YBCO. But in their Erratum in PRL[3], they admit that delta_0= -0.03 was used to fit the INS data. Hence publications [1,3] contain errors that we believe invalidate their approach.
dc.descriptionThis is a Comment on the paper of I. Eremin, and D. Manske, Phys. Rev. Lett. 94, 067006(2005)
dc.identifierhttps://arxiv.org/abs/0710.0127
dc.identifierhttp://arxiv.org/abs/0710.0127
dc.identifierPhys. Rev. Lett. 98, 139701(2007)
dc.identifierdoi:10.1103/PhysRevLett.98.139701
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/139034
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleDifficulty in the Fermi-Liquid-Based Theory for the In-Plane Magnetic Anisotropy in Untwinned High-T_c Superconductor
dc.typetext

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