EFFECT OF ADSORBED HELIUM ON ELECTRON-TUNNELING BETWEEN METAL-ELECTRODES

Authors
KEIJSERS RJP VOETS J SHKLYAREVSKII OI VANKEMPEN H
Citation
Rjp. Keijsers et al., EFFECT OF ADSORBED HELIUM ON ELECTRON-TUNNELING BETWEEN METAL-ELECTRODES, Physical review letters, 76(7), 1996, pp. 1138-1141
Citations number
16
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
76
Issue
7
Year of publication
1996
Pages
1138 - 1141
Database
ISI
SICI code
0031-9007(1996)76:7<1138:EOAHOE>2.0.ZU;2-V
Abstract
The tunnel resistance of highly stable mechanically controlled break j unctions of Al, Pt, Af and Au, recorded as a function of the electrode spacing, is found to be strongly influenced by the presence of adsorb ed He atoms at low temperatures. Telegraph-noise-like resistance fluct uations of the tunnel resistance occur in a certain range of electrode separations when the measurements are performed in He gas at T = 1.2 K. Some models which may be capable of explaining the observed effects Lire discussed.