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Bi2Sr2Ca2Cu3O10 ? based Josephson junctions and SQUIDs

Czech. J. Phys. Bd. 46. 1996 S. 1289 - 1290

Erscheinungsjahr: 1996

Publikationstyp: Zeitschriftenaufsatz (Forschungsbericht)

Sprache: Englisch

Doi/URN: DOI: 10.1007/BF02562759

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Inhaltszusammenfassung


Josephson junctions and SQUIDs on SrTiO3 bicrystal substrates were prepared from epitaxial Bi2Sr2Ca2Cu3O10 ? thin films with critical temperatures around 95K. The current-voltage characteristics are well described by the resistively and capacitively shunted junction model.I c R n products of 50?V at 77K and 0.7m V at 4.2K have been reached. TheI c (B) dependence is symmetric toB=0 with anI c suppression of 90% in the first minimum. Nevertheless it turns out, that the junctions are inhomogeneo...Josephson junctions and SQUIDs on SrTiO3 bicrystal substrates were prepared from epitaxial Bi2Sr2Ca2Cu3O10 ? thin films with critical temperatures around 95K. The current-voltage characteristics are well described by the resistively and capacitively shunted junction model.I c R n products of 50?V at 77K and 0.7m V at 4.2K have been reached. TheI c (B) dependence is symmetric toB=0 with anI c suppression of 90% in the first minimum. Nevertheless it turns out, that the junctions are inhomogeneous on a ?m scale. The flux-voltage transfer function of a SQUID reached 2.7?V/?0 at 78K. » weiterlesen» einklappen

Autoren


Frey, U. (Autor)
Meffert, H. (Autor)
Haibach, P. (Autor)
Üstüner, K. (Autor)
Jakob, G. (Autor)

Klassifikation


DFG Fachgebiet:
Physik der kondensierten Materie

DDC Sachgruppe:
Physik

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