Vortex dynamics in the twin boundaries of YBCO films
| Autor: | P. Bernstein, J.F. Hamet |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Josephson effect
Materials science Condensed matter physics Energy Engineering and Power Technology Tourbillon Activation energy Atmospheric temperature range Vorticity Condensed Matter Physics Electronic Optical and Magnetic Materials Vortex Condensed Matter::Superconductivity Electrical and Electronic Engineering Thin film Crystal twinning |
| Zdroj: | Physica C: Superconductivity. :499-500 |
| ISSN: | 0921-4534 |
| DOI: | 10.1016/j.physc.2004.03.190 |
| Popis: | The activation energy of the individual vortices in superconductive YBa 2 Cu 3 O 7− δ epitaxial thin films is proportional to the temperature in the low temperature range. Data from the literature show that this behavior is similar to that of twinned single crystals and that the activation energy takes the form E a =4π νk B T , where ν is an integer, in this domain of temperature. This property is interpreted in the framework of a critical state model according to which the vortices move along the sample twin boundaries that behave as arrays of short Josephson junctions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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