Can I read Normal state spin susceptibility in YBa2Cu3O6.92 single crystal from 63Cu and 89Y nuclear magnetic resonance on EtoBox?

Normal state spin susceptibility in YBa2Cu3O6.92 single crystal from 63Cu and 89Y nuclear magnetic resonance by T. Auler; M. Horvatic; J.A. Gillet; C. Berthier; Y. Berthier; P. Carretta; Y. Kitaoka; P. Ségransan; J.Y. Henry is a Physics and Astronomy article available to read on EtoBox.

What is Normal state spin susceptibility in YBa2Cu3O6.92 single crystal from 63Cu and 89Y nuclear magnetic resonance about?

## Ž . Ž . We present an extensive nuclear magnetic resonance NMR and nuclear quadrupole resonance NQR study of the Ž . Ž . normal state T ) T of an YBa Sr Cu O single crystal T s 90 K . The NMR data is interpreted using a model for c 1.93 0.07 3 6.92 c Y Ž . the imaginary part of the dynamical electron spin susceptibility x q,v that is consistent with the inelastic neutron Ž . Ž . scattering INS experiments carried out on the same sample investigated here : the q-dependence is assumed to be Ž . Gaussian commensurate , with short and T independent coherence length j . This model enabled us to perform a quantitative analysis of the planar copper spin-lattice and spin-spin relaxation rates which evidenced that a spin pseudogap starts to open at T ) f 130 K, confirming the INS results. Moreover, we show that the AF fluctuations contribution to yttrium relaxation is not negligible due to the dipolar coupling of the yttrium with the neighboring copper spins. The main signature of this feature is that a relation K T Ts const does not hold for the yttrium site at higher temperatures. Our main aa 1 ## Ž . conclusion is that, in order to explain the yttrium and the planar oxygen relaxation

Who reads Normal state spin susceptibility in YBa2Cu3O6.92 single crystal from 63Cu and 89Y nuclear magnetic resonance?

Author

T. Auler; M. Horvatic; J.A. Gillet; C. Berthier; Y. Berthier; P. Carretta; Y. Kitaoka; P. Ségransan; J.Y. Henry

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0921-4534)

Published

1999

Language

EN

Field

Physics and Astronomy (Physical Sciences)