Thermally activated flux motion in artificially grownYBa2Cu3O7/PrBa2Cu3O7superlattices
| Autor: | Ø. Fischer, Louis Antognazza, L. Miéville, Jean-Marc Triscone, O. Brunner |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Superconductivity
chemistry.chemical_classification High-temperature superconductivity Materials science Condensed matter physics Superlattice General Physics and Astronomy Activation energy law.invention chemistry law Electrical resistivity and conductivity Cuprate Inorganic compound Energy (signal processing) |
| Zdroj: | Physical Review Letters. 67:1354-1357 |
| ISSN: | 0031-9007 |
| DOI: | 10.1103/physrevlett.67.1354 |
| Popis: | We have studied the thermally activated flux-flow resistance in YBa{sub 2}Cu{sub 3}O{sub 7}/PrBa{sub 2}Cu{sub 3}O{sub 7} (YBCO/BrBCO) artificial superlattices in magnetic fields perpendicular to the {ital a}-{ital b} plane. We find for multilayers with thick enough ({gt}24 A) insulating PrBCO layers and for YBCO thicknesses smaller than 300 A that the activation energy has a logarithmic magnetic field dependence and that is is proportional to the YBCO thickness in the multilayer. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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