Central peak position in magnetization loops of high-Tcsuperconductors

D. V. Shantsev, Michael Rudolf Koblischka, Y. M. Galperin, T. H. Johansen, L. Pust, M. Jirsa

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Exact analytical results are obtained for the magnetization of a superconducting thin strip with a general behavior Jc(B) of the critical current density. We show that within the critical-state model the magnetization as a function of applied field, Ba has an extremum located exactly at Ba= 0. This result is in excellent agreement with presented experimental data for a YBa2Cu3O7-δthin film. After introducing granularity by patterning the film, the central peak becomes shifted to positive fields, Bcp< 0, on the descending field branch of the loop. Our results show that a positive Bcpis a definite signature of granularity in superconductors.

Original languageEnglish
Pages (from-to)2947-2950
Number of pages4
JournalPhysical Review Letters
Volume82
Issue number14
DOIs
Publication statusPublished - 1999 Jan 1
Externally publishedYes

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magnetization
range (extremes)
strip
critical current
signatures
current density
thin films

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Shantsev, D. V., Koblischka, M. R., Galperin, Y. M., Johansen, T. H., Pust, L., & Jirsa, M. (1999). Central peak position in magnetization loops of high-Tcsuperconductors. Physical Review Letters, 82(14), 2947-2950. https://doi.org/10.1103/PhysRevLett.82.2947

Central peak position in magnetization loops of high-Tcsuperconductors. / Shantsev, D. V.; Koblischka, Michael Rudolf; Galperin, Y. M.; Johansen, T. H.; Pust, L.; Jirsa, M.

In: Physical Review Letters, Vol. 82, No. 14, 01.01.1999, p. 2947-2950.

Research output: Contribution to journalArticle

Shantsev, DV, Koblischka, MR, Galperin, YM, Johansen, TH, Pust, L & Jirsa, M 1999, 'Central peak position in magnetization loops of high-Tcsuperconductors', Physical Review Letters, vol. 82, no. 14, pp. 2947-2950. https://doi.org/10.1103/PhysRevLett.82.2947
Shantsev, D. V. ; Koblischka, Michael Rudolf ; Galperin, Y. M. ; Johansen, T. H. ; Pust, L. ; Jirsa, M. / Central peak position in magnetization loops of high-Tcsuperconductors. In: Physical Review Letters. 1999 ; Vol. 82, No. 14. pp. 2947-2950.
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