JOSEPHSON COUPLING MEDIATED BY QUANTUM DIFFUSION

Authors
FRYDMAN A OVADYAHU Z
Citation
A. Frydman et Z. Ovadyahu, JOSEPHSON COUPLING MEDIATED BY QUANTUM DIFFUSION, Solid state communications, 95(2), 1995, pp. 79-83
Citations number
22
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
95
Issue
2
Year of publication
1995
Pages
79 - 83
Database
ISI
SICI code
0038-1098(1995)95:2<79:JCMBQD>2.0.ZU;2-T
Abstract
We present results on the transport properties of Pb/I/Pb junctions, w here I is either a-Ge or a-InO film. At helium temperatures, such stru ctures sustain non-dissipative currents and exhibit systematic sub-gap I-V modulation. The data are consistent with the existence of a Josep hson-coupling mechanism involving quantum mechanical coherent diffusio n within the Anderson-insulating barrier.