Details of Grant 

EPSRC Reference:	GR/L50808/01
Title:	INTRINSIC JOSEPHSON EFFECTS IN YBCO FILMS
Principal Investigator:	Warburton, Professor PA
Other Investigators:
Researcher Co-Investigators:
Project Partners:	University of Maryland, College Park
Department:	Electronic Engineering
Organisation:	Kings College London
Scheme:	Standard Research (Pre-FEC)
Starts:	01 October 1997	Ends:	30 September 2000	Value (£):	55,174
EPSRC Research Topic Classifications:	Materials Processing
EPSRC Industrial Sector Classifications:	No relevance to Underpinning Sectors
Related Grants:
Panel History:
Summary on Grant Application Form
There has been world-wide interest in intrinsic Josephson effects in high temperature superconductors. Most of the experimental work has been done on single crystals and thin films of the highly anisotropic thallium- and bismuth-based superconductors. Intrinsic Josephson effects have however recently been observed in c-axis oriented YBCO films. In our work we will investigate intrinsic Josephson effects in a-axis oriented YBCO films. The resulting device structure ( a simple patterned microbridge) is much easier to fabricate than with c-axis films, since the relevant transport direction is now in the plane of the substrate. Having confirmed the presence of intrinsic Josephson behaviour in a-axis films, we will optimise the power emitted from an a-axis microbridge with a view to applications in sub-mm-wave astronomy and metrology.
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