1 / 5

Parent structure LaCuO 3 (related to perovskite, CaTiO 3 )

Rare earth doped material YBa 2 Cu 3 O 7 : “1-2-3 type” superconductor. Parent structure LaCuO 3 (related to perovskite, CaTiO 3 ). The Meissner effect.

avel
Download Presentation

Parent structure LaCuO 3 (related to perovskite, CaTiO 3 )

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Rare earth doped material YBa2Cu3O7 : “1-2-3 type” superconductor Parent structure LaCuO3 (related to perovskite, CaTiO3)

  2. The Meissner effect The Meissner effect in superconductors like this black ceramic yttrium based superconductor acts to exclude magnetic fields from the material. Since the electrical resistance is zero, supercurrents are generated in the material to exclude the magnetic fields from a magnet brought near it. The currents which cancel the external field produce magnetic poles which mirror the poles of the permanent magnet, repelling them to provide the lift to levitate the magnet. The levitation process is quite remarkable. Since the levitating currents in the superconductor meet no resistance, they can adjust almost instantly to maintain the levitation. The suspended magnet can be moved, put into oscillation, or even spun rapidly and the levitation currents will adjust to keep it in suspension.

More Related