Magnetic collective mode dispersion in high-temperature superconductors

Article

关键词: NEUTRON-SCATTERING;    FLUCTUATIONS;    EXCITATIONS;   

DOI  :  10.1103/PhysRevB.63.092509

来源: SCIE

【 摘 要 】

Recent neutron-scattering experiments in the superconducting state of YBa2Cu3O6+x have been interpreted in terms of a magnetic collective mode whose dispersion relative to the commensurate wave vector has a curvature opposite in sign to a conventional magnon dispersion. The purpose of this article is to demonstrate that simple linear-response calculations are in support of a collective-mode interpretation, and to explain why the dispersion has the curvature it does.

【 授权许可】

Free