Evidence for a quasi-1D topological-excitation liquid in Bi2Sr2CaCu2O8 + x from tunneling spectroscopy

2001 EDP Sciences
, , Citation A. Mourachkine 2001 EPL 55 559 DOI 10.1209/epl/i2001-00452-6

This article is corrected by 2001 EPL 56 468

0295-5075/55/4/559

Abstract

Tunneling measurements have been carried out on heavily underdoped and slightly overdoped Bi2Sr2CaCu2O8 + x (Bi2212) single crystals by using a break-junction technique. We find that in-plane tunneling spectra below Tc are the combination of incoherent part from the pseudogap and coherent quasiparticle peaks. There is a correlation between the magnitude of the pseudogap and the magnitude of the superconducting gap in Bi2212. We find that the quasiparticle conductance peaks are caused by condensed soliton-like excitations.

Export citation and abstract BibTeX RIS

10.1209/epl/i2001-00452-6