In-plane quasi-particle tunneling into Bi2Sr2CaCu2O8

Authors
Aubin, H Pugel, DE Badica, E Greene, LH Jain, S Hinks, DG
Citation
H. Aubin et al., In-plane quasi-particle tunneling into Bi2Sr2CaCu2O8, PHYSICA C, 341, 2000, pp. 1681-1682
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
341
Year of publication
2000
Part
3
Pages
1681 - 1682
Database
ISI
SICI code
0921-4534(200011)341:<1681:IQTIB>2.0.ZU;2-P
Abstract
Planar tunneling spectroscopy is performed into the a-b plane of the high-t emperature superconductor Bi2Sr2CaCu2O8. The tunneling spectra exhibit a ze ro-bias conductance peak (ZBCP). Preliminary studies as a function of tempe rature, crystallographic orientation, magnetic field magnitude and directio n confirm the ZBCP is an Andreev bound state (ABS) at zero energy. Below 5K , a depletion in the density of states at zero energy is observed.