9 May 2003 Higher-order tunneling processes and enhanced shot noise in superconducting tunnel devices
Author Affiliations +
Proceedings Volume 5112, Noise as a Tool for Studying Materials; (2003) https://doi.org/10.1117/12.496957
Event: SPIE's First International Symposium on Fluctuations and Noise, 2003, Santa Fe, New Mexico, United States
Abstract
Tunnel barriers play a key role in current applications of superconducting tunnel-devices for THz frequency heterodyne mixing and for magentic tunnel junctions for data-storage applications. Shot noise in the tunnel current limits the sensitivity of tunnel junctions as high frequency detectors. The observed voltage dependence has proven to be a valuable probe to evaluate the quality of the tunnel barrier, in particular for inhomogeneities in thickness or at least for a distribution of transmissivities. It is an open question whether similar measurements can be made informative for magnetic tunnel junctions as well.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Teun M. Klapwijk, Teun M. Klapwijk, } "Higher-order tunneling processes and enhanced shot noise in superconducting tunnel devices", Proc. SPIE 5112, Noise as a Tool for Studying Materials, (9 May 2003); doi: 10.1117/12.496957; https://doi.org/10.1117/12.496957
PROCEEDINGS
11 PAGES


SHARE
RELATED CONTENT

High resolution x ray detection at 1.2 K with niobium...
Proceedings of SPIE (November 06 1994)
Tunneling density of states in a-axis YBCO films
Proceedings of SPIE (June 09 1996)
Superconducting Bi Sr Ca Cu O Films Prepared by Laser...
Proceedings of SPIE (March 18 1990)
Development of SIS mixers for 1 THz
Proceedings of SPIE (July 30 1998)

Back to Top