EVIDENCE FOR D(X2-Y2) SYMMETRY OF SUPERCONDUCTING ORDER-PARAMETER IN YBCO FROM NEUTRON-SCATTERING DATA

Authors
ONUFRIEVA F
Citation
F. Onufrieva, EVIDENCE FOR D(X2-Y2) SYMMETRY OF SUPERCONDUCTING ORDER-PARAMETER IN YBCO FROM NEUTRON-SCATTERING DATA, Physica. C, Superconductivity, 251(3-4), 1995, pp. 348-354
Citations number
25
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
251
Issue
3-4
Year of publication
1995
Pages
348 - 354
Database
ISI
SICI code
0921-4534(1995)251:3-4<348:EFDSOS>2.0.ZU;2-Y
Abstract
Symmetry of the superconducting order parameter in cuprates is analyze d in relation with recent inelastic neutron-scattering data. It is sho wn that the experimental results for YBa2Cu3O7-eta rule out the possib ility of extended s wave pairing. On the contrary, the neutron scatter ing data are in a very good agreement with d(x2-y2) symmetry of the su perconducting order parameter. Since only these two candidates remain after precise recent measurements of Josephson junctions, we conclude that the symmetry of the superconducting order parameter in YBCO is d( x2-y2).