Warburton, PA and Kuzhakhmetov, AR and Bell, C and Burnell, G and Blamire, MG and Wu, H and Grovenor, CRM and Schneidewind, H (2003) Sub-micron thin film intrinsic Josephson junctions. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY , 13 (2) 821 - 824. 10.1109/TASC.2003.814056.
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Abstract
We have fabricated sub-micron intrinsic Josephson junctions in thin films of Tl-Ba-Ca-Cu-O using two differing techniques suited to different applications. By using lateral focussed ion-beam milling we have created arrays of intrinsic junctions in c-axis oriented films. Such arrays, with areas as low as 0.25 mum(2), display large hysteresis comparable to that observed in single-crystal intrinsic junctions. By using normal focussed ion-beam milling we have created arrays in mis-aligned films grown on vicinal substrates. In arrays of area less than 0.4 mum(2) we observe Josephson phase diffusion and a suppressed critical current, showing that charging effects may be significant in these junctions.
| Type: | Article |
|---|---|
| Title: | Sub-micron thin film intrinsic Josephson junctions |
| Location: | HOUSTON, TX |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/TASC.2003.814056 |
| Keywords: | focussed ion-beam milling, Josephson junctions, nanofabrication, BI2SR2CACU2O8+DELTA, FABRICATION |
| UCL classification: | UCL > School of BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
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