Elucidation of the helical spin structure of FeAs

T. Frawley, R. Schoonmaker, S. H. Lee, C. H. Du, P. Steadman, J. Strempfer, Kh A. Ziq, S. J. Clark, T. Lancaster, P. D. Hatton

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


We present the results of resonant x-ray scattering measurements and electronic structure calculations on the monoarsenide FeAs. We elucidate details of the magnetic structure, showing the ratio of ellipticity of the spin helix is larger than previously thought, at 2.58(3), and reveal both a right-handed chirality and an out-of-plane component of the magnetic moments in the spin helix. We find that electronic structure calculations and analysis of the spin-orbit interaction are able to qualitatively account for this canting.

Original languageEnglish
Article number064424
JournalPhysical Review B
Issue number6
StatePublished - 22 Feb 2017

Bibliographical note

Publisher Copyright:
© 2017 American Physical Society.

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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