Scheduled System Maintenance:
Some services will be unavailable Sunday, March 29th through Monday, March 30th. We apologize for the inconvenience.
By Topic

Fabrication of Superconducting Nanowires Using  \hbox {MgB}_{2} Thin Films

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
2 Author(s)
Shimakage, H. ; Ibaraki Univ., Hitachi, Japan ; Zhen Wang

In this paper, we report on the fabrication and characterization of MgB2 ultrathin films, which would be useful for hot electron bolometer mixers and superconducting single photon detectors. MgB2 thin films were fabricated using a carousel sputtering system in which 6-nm-thick MgB2 thin films showed a critical temperature of 7 K. We succeeded in fabricating hot electron detectors; these showed a high current density of 7.7 × 106 A/cm2 at 4.2 K in the 400-nm bridge with an MgB2 thickness of 30 nm. Furthermore, we succeeded in fabricating detectors with a 250-nm-wide meander line, 10 nm thickness, and critical temperature of 12 K. These results indicate that the fabrication process for these devices is a promising technique for future experiments.

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:23 ,  Issue: 3 )