SPIN DYNAMICS IN THE HIGH-T(C) SYSTEM YBA2CU3O(6- THE HEAVILY-DOPED REGIME(X) )

Authors
ROSSATMIGNOD J BOURGES P ONUFRIEVA F REGNAULT LP HENRY JY BURLET P VETTIER C
Citation
J. Rossatmignod et al., SPIN DYNAMICS IN THE HIGH-T(C) SYSTEM YBA2CU3O(6- THE HEAVILY-DOPED REGIME(X) ), Physica. B, Condensed matter, 199, 1994, pp. 281-283
Citations number
10
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
199
Year of publication
1994
Pages
281 - 283
Database
ISI
SICI code
0921-4526(1994)199:<281:SDITHS>2.0.ZU;2-L
Abstract
Inelastic neutron scattering experiments have been carried out on YBa2 Cu3O6+x single crystals, and we report here on the behaviour of the sp in dynamics in the heavily hole-doped regime 0.6 < x < 0.94. The dynam ic AF-correlations remain; the in-plane q-width increases with doping and the AF-coupling between CuO2 layers is not affected. Below T(c) Im chi exhibits a gap and an enhancement at energies which increase with hole doping. Moreover a pseudo-gap persists above T(c).