Enhanced critical currents of superconducting erni2b2c in the ferromagnetically ordered state

P. L. Gammel, B. Barber, D. Lopez, A. P. Ramirez, D. J. Bishop, S. L. Bud’ko, P. C. Canfield

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

We report on transport and magnetization studies of the critical current in single crystal ErNi2B2C for applied fields below 4 kG. Below T≈2.5 K superconductivity coexists with weak ferromagnetism. We find that the critical currents are strongly enhanced for all field orientations in this ferromagnetic regime, corresponding to a threefold increase of the pinning force of the flux line lattice. We speculate that this increase is due to strong pair breaking by the ferromagnetism.

Original languageEnglish (US)
Pages (from-to)2497-2500
Number of pages4
JournalPhysical review letters
Volume84
Issue number11
DOIs
StatePublished - 2000

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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