Inherent inhomogeneities in tunneling spectra of Bi2Sr2CaCu2O8-x crystals in the superconducting state - art. no. 100504

Authors
Howald, C Fournier, R Kapitulnik, A
Citation
C. Howald et al., Inherent inhomogeneities in tunneling spectra of Bi2Sr2CaCu2O8-x crystals in the superconducting state - art. no. 100504, PHYS REV B, 6410(10), 2001, pp. 0504
Citations number
25
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
6410
Issue
10
Year of publication
2001
Database
ISI
SICI code
0163-1829(20010901)6410:10<0504:IIITSO>2.0.ZU;2-5
Abstract
Scanning tunneling spectroscopy on cleaved BSCCO(2212) single crystals reve als inhomogeneities on length scales of similar to 30 Angstrom. While most of the surface yields spectra consistent with a d-wave superconductor, smal l regions show a doubly gapped structure with both gaps lacking coherence p eaks and the larger gap having a size typical of the respective pseudogap f or the same sample.