Skip to main content

Well-defined grain boundary weak-links in silver-sheathed ( tape conductors

Buy Article:

$43.90 plus tax (Refund Policy)


The key factors that make the thallium-based 1223 phase conductors attractive candidates for high-field applications at 77 K are a high transition temperature (about 115 K) and an irreversibility line comparable to that of . However, a third important factor is the grain boundary behaviour. We have performed detailed current - voltage (I - V) studies of a silver-sheathed ( (Tl-1223/Ag) tape. Although the tape has a fairly high self-field critical current density at 77 K (about ), the I - V characteristics display the `weak-link' signatures well known for : linear dissipation above a sharply defined critical current, a pronounced decrease of in a magnetic field H and hysteresis with respect to field cycling. Broader implications for the superconductive behaviour of HTS grain boundaries are discussed.

Document Type: Miscellaneous

Affiliations: 1: Centre for High Temperature Superconductivity, Blackett Laboratory, Imperial College, London SW7 2BZ, UK 2: Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UK

Publication date: December 1, 1996


Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more