✦ LIBER ✦

Vertex corrections for dynamical spin susceptibility of the Hubbard model and comparison with neutron scattering on YBa2Cu3O6+x

✍ Scribed by T. Dahm; L. Tewordt

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 410 KB
Volume: 265
Category: Article
ISSN: 0921-4534
DOI: 10.1016/0921-4534(96)00241-9

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✦ Synopsis

The vertex corrections of the dynamical spin susceptibility are calculated for a Hubbard model with intermediate coupling strength (U/t --7) and a Fermi surface approximating that of YBa2Cu307. The resulting q-dispersion of the coupling J(q) yields below T¢ for d~2_y2-wave pairing a resonant-like peak in the spectral neutron scattering weight in qualitative agreement with experiments on YBa2Cu3Ot+ ~.

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Investigation of the spin dynamics in YB

Investigation of the spin dynamics in YBa2Cu3O6+x by inelastic neutron scattering

✍ J. Rossat-Mignod; L.P. Regnault; C. Vettier; P. Burlet; J.Y. Henry; G. Lapertot 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 692 KB

The invited talk was given by J. Rossat-Mignod. ## Inelastic neutron scattering experiments have been carried out on YBa,Cu,O,+, single crystals to investigate the spin dynamics in the pure AF-state (X = 0.