ISSN:
1090-6487
Keywords:
74.50.+r
;
74.76.Bz
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The characteristic features of the conductance of a tunneling contact, formed by a microscope tip and an Au/YBCO sandwich, are investigated with the aid of a scanning tunneling microscope. It is shown that there exist three types of dependences of the conductance of the structure on the applied voltage, which are distinguished by the position of the characteristic features on the voltage axis. It is established that this difference is due to the local characteristics of the proximity effect in gold films on a high-T c superconductor surface. It is concluded that the transmittance of the YBCO/Au boundary is spatially strongly nonuniform.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1134/1.567116