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Trapped magnetic flux in polycrystalline YBa2Cu3O7

✍ Scribed by V. Keith; H.J.T. Smith

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 617 KB
Volume: 218
Category: Article
ISSN: 0921-4534
DOI: 10.1016/0921-4534(93)90258-r

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✦ Synopsis

Measurements of the trapped flux (rcmanent magnetism) in polycrystalline YBasCusO, in the range 15-50 K show that at low applied field pulses, flux is trapped in the intergrain voids. A detailed measurement of a map of the remanent field over the whole surface of the sample shows that at very low fields flux is trapped in an asymmetrical and disordered way whereas when the maximum flux is trapped in the intergrain voids the trapped-flus distribution is symmetrical.

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