SEARCH FOR SUPERCONDUCTIVITY OF AG GE(100) SURFACE ALLOYS WITH UHV-LT-STM/STS/

Authors
HATTORI K IIMORI T TAKAHASHI Y IWAKI T KOMORI F
Citation
K. Hattori et al., SEARCH FOR SUPERCONDUCTIVITY OF AG GE(100) SURFACE ALLOYS WITH UHV-LT-STM/STS/, Czechoslovak journal of Physics, 46, 1996, pp. 709-710
Citations number
4
Categorie Soggetti
Physics
Journal title
Czechoslovak journal of Physics → ACNP
ISSN journal
00114626
Volume
46
Year of publication
1996
Supplement
2
Pages
709 - 710
Database
ISI
SICI code
0011-4626(1996)46:<709:SFSOAG>2.0.ZU;2-1
Abstract
We have been searching novel superconducting materials only at their s urface regions using a homemade ultra high vacuum low temperature scan ning tunnelling microscope. We found that scanning tunneling current-v oltage curves on 5 Angstrom thick Ag deposited Ge(100) surfaces at 2.9 K are slight non-linear with an energy gap of a few meV. The temperat ure dependence of the non-linearity suggests superconductivity on the surface alloys.