Observation of magnetic field lines in the vicinity of a superconductor with the naked eye

2008/05/26 by Yoshihiko Saito, Saito, Yoshihiko
Physics and Astronomy · #FOS: Physical sciences #General Physics (physics.gen-ph) #Magnetic properties of thin films #Physics of Superconductivity and Magnetism #Popular Physics (physics.pop-ph) #physics.gen-ph #physics.pop-ph

paper · pdf · doi:10.48550/arxiv.0805.3990

14 pages, 13 figures http://www.sci-museum.kita.osaka.jp/~saito/superconduct.html

openalex publication_date 2008/05/26 · arxiv created 2008/11/04 · arxiv updated 2013/06/19 · openalex created_date 2019/06/27 · openalex updated_date 2026/07/28

Abstract

Meissner effect and pinning effect are clearly observed with the naked eye. A GdBaCuO high-temperature superconductor (HTS) disk fabricated by Nippon Steel Corporation, a 100mm cubic NdFeB sintered magnet, and iron wires coated by colored are used. When the HTS is put in the magnetic field of the magnet, it can be observed by the wires that the magnetic field lines are excluded from the superconductor (Meissner effect) as well as are pinned in the superconductor (pinning effect).

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