Superconducting gap and pseudogap in Bi-2212

Authors
Opel, M Venturini, F Hackl, R Revaz, B Berger, H Forro, L
Citation
M. Opel et al., Superconducting gap and pseudogap in Bi-2212, PHYSICA B, 284, 2000, pp. 669-670
Citations number
4
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
284
Year of publication
2000
Part
1
Pages
669 - 670
Database
ISI
SICI code
0921-4526(200007)284:<669:SGAPIB>2.0.ZU;2-4
Abstract
We present results of Raman scattering experiments in differently doped Bi2 Sr2(CaxY1-x)Cu2O8+delta (Bi-2212) single crystals. Below T-c the spectra sh ow pair-breaking features in the whole doping range reflecting a d(x2+y2) o rder parameter. In the normal state between T-c and T* similar or equal to 200 K we find signatures for a pseudogap in B-2g symmetry which disappear a bove optimal doping. (C) 2000 Elsevier Science B.V. All rights reserved.