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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
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