Josephson effects in misaligned Tl-2212 films
We have measured Josephson RSJ-like static current-voltage characteristics in 2-mu m-wide bridges patterned in the [cos 20 degrees 0 sin 20 degrees] direction in 200 degrees misaligned thin films of Tl2Ba2CaCu2O8 grown on vicinal LaAlO3 substrates. The temperature dependence of the critical current...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Conference item |
| Published: |
Elsevier
1999
|
| _version_ | 1797074219373166592 |
|---|---|
| author | Chana, O Hyland, D Kinsey, R Booij, W Blamire, MG Grovenor, C Dew-Hughes, D Warburton, P |
| author_facet | Chana, O Hyland, D Kinsey, R Booij, W Blamire, MG Grovenor, C Dew-Hughes, D Warburton, P |
| author_sort | Chana, O |
| collection | OXFORD |
| description | We have measured Josephson RSJ-like static current-voltage characteristics in 2-mu m-wide bridges patterned in the [cos 20 degrees 0 sin 20 degrees] direction in 200 degrees misaligned thin films of Tl2Ba2CaCu2O8 grown on vicinal LaAlO3 substrates. The temperature dependence of the critical current of the bridge is well-described by Josephson SIS tunnelling between two BCS superconductors, with IcRn equal to 26 mV at 4.4 K. Conversely, the current-voltage characteristics of bridges patterned in the orthogonal [0 1 0] direction in the same films show flux-flow behaviour. This, coupled with the insensitivity of the inter-plane critical current to a small magnetic field, strongly suggests that the Josephson behaviour we have observed is due to intrinsic Josephson coupling between adjacent copper oxide planes, and not to extrinsic inter-grain coupling. (C) 1999 Elsevier Science B.V. All rights reserved. |
| first_indexed | 2024-03-06T23:32:58Z |
| format | Conference item |
| id | oxford-uuid:6cb1896b-12bb-4fb1-9c30-528d4337e80c |
| institution | University of Oxford |
| last_indexed | 2024-03-06T23:32:58Z |
| publishDate | 1999 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oxford-uuid:6cb1896b-12bb-4fb1-9c30-528d4337e80c2022-03-26T19:12:41ZJosephson effects in misaligned Tl-2212 filmsConference itemhttp://purl.org/coar/resource_type/c_5794uuid:6cb1896b-12bb-4fb1-9c30-528d4337e80cSymplectic Elements at OxfordElsevier1999Chana, OHyland, DKinsey, RBooij, WBlamire, MGGrovenor, CDew-Hughes, DWarburton, PWe have measured Josephson RSJ-like static current-voltage characteristics in 2-mu m-wide bridges patterned in the [cos 20 degrees 0 sin 20 degrees] direction in 200 degrees misaligned thin films of Tl2Ba2CaCu2O8 grown on vicinal LaAlO3 substrates. The temperature dependence of the critical current of the bridge is well-described by Josephson SIS tunnelling between two BCS superconductors, with IcRn equal to 26 mV at 4.4 K. Conversely, the current-voltage characteristics of bridges patterned in the orthogonal [0 1 0] direction in the same films show flux-flow behaviour. This, coupled with the insensitivity of the inter-plane critical current to a small magnetic field, strongly suggests that the Josephson behaviour we have observed is due to intrinsic Josephson coupling between adjacent copper oxide planes, and not to extrinsic inter-grain coupling. (C) 1999 Elsevier Science B.V. All rights reserved. |
| spellingShingle | Chana, O Hyland, D Kinsey, R Booij, W Blamire, MG Grovenor, C Dew-Hughes, D Warburton, P Josephson effects in misaligned Tl-2212 films |
| title | Josephson effects in misaligned Tl-2212 films |
| title_full | Josephson effects in misaligned Tl-2212 films |
| title_fullStr | Josephson effects in misaligned Tl-2212 films |
| title_full_unstemmed | Josephson effects in misaligned Tl-2212 films |
| title_short | Josephson effects in misaligned Tl-2212 films |
| title_sort | josephson effects in misaligned tl 2212 films |
| work_keys_str_mv | AT chanao josephsoneffectsinmisalignedtl2212films AT hylandd josephsoneffectsinmisalignedtl2212films AT kinseyr josephsoneffectsinmisalignedtl2212films AT booijw josephsoneffectsinmisalignedtl2212films AT blamiremg josephsoneffectsinmisalignedtl2212films AT grovenorc josephsoneffectsinmisalignedtl2212films AT dewhughesd josephsoneffectsinmisalignedtl2212films AT warburtonp josephsoneffectsinmisalignedtl2212films |