Multiple coexisting orientations of flux lines in superconductors with uniaxial anisotropy

A. Sudbø, E. H. Brandt, D. A. Huse

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

The self-energy and Gibbs free energy of rigid vortex lines are calculated for a uniaxially anisotropic London superconductor with a magnetic field applied at an angle φ from the c^ axis. When the correct elliptical core cutoff is used, the Gibbs free energy may have degenerate double minima as a function of vortex orientation. This indicates the coexistence of flux lines with different orientations at fields just above Hc1, applied at an angle φ0 from the c^ axis. The regime of parameters H, φ, Mz/M, and κ where this occurs is mapped out.

Original languageEnglish (US)
Pages (from-to)1451-1454
Number of pages4
JournalPhysical review letters
Volume71
Issue number9
DOIs
StatePublished - Jan 1 1993
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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