Perpendicular transport properties of YBa2Cu3O7−δ/PrBa2Cu3O7−δ superlattices
Physica B: Condensed Matter. Bd. 284-288. 2000 S. 553 - 554
Erscheinungsjahr: 2000
Publikationstyp: Zeitschriftenaufsatz (Forschungsbericht)
Sprache: Englisch
Doi/URN: 10.1016/S0921-4526(99)02170-5
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Inhaltszusammenfassung
The coupling between the superconducting planes of YBa2Cu3O7??/PrBa2Cu3O7?? superlattices has been measured by c-axis transport. We show that only by changing the thickness of the superconducting YBa2Cu3O7?? layers, it is possible to switch between quasi-particle and Josephson tunneling. From our data we deduce a low-temperature c-axis coherence length of ?c=0.27 nm.
Klassifikation
DFG Fachgebiet:
Physik der kondensierten Materie
DDC Sachgruppe:
Physik
