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Observation of a field-driven structural phase transition in the flux line lattice in ErNi2B2C

  • M. R. Eskildsen
  • , P. L. Gammel
  • , B. P. Barber
  • , U. Yaron
  • , A. P. Ramirez
  • , D. A. Huse
  • , D. J. Bishop
  • , C. Bolle
  • , C. M. Lieber
  • , S. Oxx
  • , S. Sridhar
  • , N. H. Andersen
  • , K. Mortensen
  • , P. C. Canfield

Research output: Contribution to journalArticlepeer-review

Abstract

Small-angle neutron scattering and magnetic decoration both demonstrate a topological transition in the flux line lattice (FLL) in ErNi2B2C. The high-field square lattice slowly transforms into a hexagonal lattice via an area preserving [100] rhombohedral distortion below roughly 500 Oe. The square FLL is aligned with the [110] direction of the tetragonal crystal, while the two domains of the hexagonal FLL are aligned with [100] and [010]. The differences in pinning for the two FLL topologies are reflected in the rf kinetic inductance.

Original languageEnglish (US)
Pages (from-to)1968-1971
Number of pages4
JournalPhysical review letters
Volume78
Issue number10
DOIs
StatePublished - 1997
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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