106 citations · 266 across the 9 of their papers we have counts for
9 papers
On Transmission Line Resonances in High T dc SQUIDs
Urbasi Sinha, Aninda Sinha, Edward Tarte
In this paper, we study transmission line resonances in high dc SQUIDs. These resonances are exhibited in the characteristics of SQUIDs which are fabricated on substrates wit…
Normal state properties of high angle grain boundaries in (Y,Ca)Ba2Cu3O7-delta
S. H. Mennema, J. H. T. Ransley, G. Burnell +3
By lithographically fabricating an optimised Wheatstone bridge geometry, we have been able to make accurate measurements of the resistance of grain boundaries in Y1-xCaxBa2Cu3O7-d…
The Normal State Resistivity of Grain Boundaries in YBa2Cu3O7-delta
J. H. T. Ransley, S. H. Mennema, K. G. Sandeman +6
Using an optimized bridge geometry we have been able to make accurate measurements of the properties of YBa2Cu3O7-delta grain boundaries above Tc. The results show a strong depende…
Direct Observation of a Temperature Dependent 0-pi Junction Transition in a Mesoscopic High Critical Temperature Grain Boundary Junction
G. Testa, A. Monaco, E. Esposito +5
We have observed, for the first time, a temperature dependent 0-pi junction crossover in a 45 symmetric [001] tilt grain boundary junction. Experimental data, obtained by a double…
Controllable Josephson current through a pseudo-spin-valve structure
C. Bell, G. Burnell, C. W. Leung +3
A thin Co/Cu/Permalloy (NiFe) pseudo-spin-valve structure is sandwiched between superconducting Nb contacts. When the current is passed perpendicular to the plane of…
Proximity and Josephson effects in superconductor - antiferromagnetic Nb / γ-Fe50Mn50 heterostructures
C. Bell, E. J. Tarte, G. Burnell +3
We study the proximity effect in superconductor (S), antiferromagnetic (AF) bilayers, and report the fabrication and measurement of the first trilayer S/AF/S Josephson junctions. T…