YBa2Cu3O7-x flux field penetration determined by acoustic emission data

E. Dul'kin*, V. Beilin, E. Yashchin, M. Roth

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


We have studied YBa2Cu3O7-x ceramic samples during current cycling at 77 K using an acoustic emission method. We have observed the acoustic emission impulses at a narrow region current value of ±0.5 A. These impulses are reasoned to be the flux-line motion penetration into the samples by the magnetic self-field. Based on an experimental current value and the size of the sample, this H1 self-field value has been calculated to be 104 Oe. It is shown that the flux-line pinning process takes place most intensively in the narrow surface layer of a material.

Original languageAmerican English
Pages (from-to)1081-1082
Number of pages2
JournalSuperconductor Science and Technology
Issue number7
StatePublished - Jul 2002


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