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Bereichsstrukturen in Supraleitern - Zwischenzustand in einer Typ-I-Bleischicht bei Veränderung des angelegten Magnetfeldes
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Formal Metadata
| Title | Bereichsstrukturen in Supraleitern - Zwischenzustand in einer Typ-I-Bleischicht bei Veränderung des angelegten Magnetfeldes |
| Alternative Title | Domain Structures in Superconductors - Transient State in a Typ-I-layer of a Lead Caused by Variation of the Magnetic Field |
| Author |
Kirchner, Heinz
|
| License |
No Open Access License: German copyright law applies. This film may be used for your own use but it may not be distributed via the internet or passed on to external parties. |
| DOI | 10.3203/IWF/E-1729 |
| IWF Signature | E 1729 |
| Publisher | IWF (Göttingen) |
| Release Date | 1972 |
| Language | Silent film |
| Producer |
Siemens AG, Zentrale Forschung und Entwicklung, Forschungslaboratorien
|
| Production Year | 1968 |
Technical Metadata
| IWF Technical Data | Film, 16 mm, 55 m ; SW, 5 min |
Content Metadata
| Subject Area | Physics |
| Abstract |
Zwischenzustand einer aufgedampften Supraleiterschicht aus Blei (4,2 K, transversales magnetisches Feld, veränderliche Amplitude). Sichtbarmachung durch polarisiertes Licht (Faradayeffekt in EuS/EuF[2] Schicht). Fluß, normalleitende Mäander, normalleitende Zellen bei zunehmender Amplitude. Abnehmende Amplitude: supraleitende Filamente und Mäander, oszillierende Amplitude. The intermediate-state structures of an evaporated superconducting lead film of 7 µm thickness in a vertically applied magnetic field of variable amplitude are presented. The domains have been made visible by means of the Faraday effect in thin evaporated EuS/EuF[2] films. The following topics are shown: 1.The penetration of magnetic flux, the formation of normal meanders and of normal honeycomb-like cells upon increasing the magnetic-field amplitude. 2.The nucleation of superconducting filaments, the formation of superconducting meanders and normal domains issuing the sample upon decreasing the magnetic-field amplitude. 3.The growth, the shrinkage and the disappearance of superconducting filaments upon slowly oszillating the magnetic-field amplitude. |
| Keywords |
Supraleitung Supraleiter Faraday-Effekt Blei / Supraleiter lead / superconductor Faraday effect superconductor superconductivity |
