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Spin-1 neutron resonance peak cannot account for electronic anomalies in the cuprate superconductors

Kee, HY; Kivelson, SA; Aeppli, G; (2002) Spin-1 neutron resonance peak cannot account for electronic anomalies in the cuprate superconductors. PHYS REV LETT , 88 (25) , Article 257002. 10.1103/PhysRevLett.88.257002. Green open access

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Abstract

In certain cuprates, a spin-1 resonance mode is prominent in the magnetic structure measured by neutron scattering. It has been proposed that this mode is responsible for significant features seen in other spectroscopies, such as photoemission and optical absorption, which are sensitive to the charge dynamics, and even that this mode is the boson responsible for "mediating" the superconducting pairing. We show that its small (measured) intensity and weak coupling to electron-hole pairs (as deduced from the measured lifetime) disqualifies the resonant mode from either proposed role.

Type: Article
Title: Spin-1 neutron resonance peak cannot account for electronic anomalies in the cuprate superconductors
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.88.257002
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.88.257002
Language: English
Keywords: HIGH-TEMPERATURE SUPERCONDUCTORS, T-C SUPERCONDUCTORS, MAGNETIC EXCITATIONS, PSEUDOGAP STATE, BI2SR2CACU2O8+DELTA, SCATTERING, MECHANISM, ENERGY, SUSCEPTIBILITY, YBA2CU3O6.95
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: https://discovery.ucl.ac.uk/id/eprint/291967
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