Microwave-Enhanced Superconductivity and Transport-Properties of Y-Ba-Cu-O Bicrystal Weak-Links
Journal
IEEE Transactions on Applied Superconductivity
Journal Volume
5
Journal Issue
2
Pages
2196-2199
Date Issued
1995
Author(s)
Abstract
The effects of the tilt angle on microwave-enhanced transition temperatures and critical currents of YBCO bicrystal weak-links have been investigated. It was found that, with smaller grain boundary tilt angles (e.g. 24/spl deg/), the enhancement was small, displaying essentially the same behavior as that manifested in intragranular regions. By contrast, when the tilt angle was increased from 36.8/spl deg/ to 45/spl deg/, noticeable Tc enhancement was found to occur even at low input microwave powers. The results were compared to the temperature dependent critical current, in order to delineate possible correlations between the two physical parameters.>
The effects of the tilt angle on microwave-enhanced transition temperatures and critical currents of YBCO bicrystal weak-links have been investigated. It was found that, with smaller grain boundary tilt angles (e.g. 24/spl deg/), the enhancement was small, displaying essentially the same behavior as that manifested in intragranular regions. By contrast, when the tilt angle was increased from 36.8/spl deg/ to 45/spl deg/, noticeable Tc enhancement was found to occur even at low input microwave powers. The results were compared to the temperature dependent critical current, in order to delineate possible correlations between the two physical parameters.>
SDGs
Type
journal article