Elucidation of the helical spin structure of FeAs

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

Abstract

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.

Citation

Frawley, T., Schoonmaker, R., Lee, S., Du, C., Steadman, P., Strempfer, J., …Hatton, P. (2017). Elucidation of the helical spin structure of FeAs. Physical Review B, 95(6), Article 064424. https://doi.org/10.1103/physrevb.95.064424

• Journal Article Type: Article
• Acceptance Date: Feb 22, 2017
• Online Publication Date: Feb 22, 2017
• Publication Date: Feb 22, 2017
• Deposit Date: Feb 28, 2017
• Publicly Available Date: Mar 3, 2017
• Journal: Physical Review B
• Print ISSN: 2469-9950
• Electronic ISSN: 2469-9969
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 95
• Issue: 6
• Article Number: 064424
• DOI: https://doi.org/10.1103/physrevb.95.064424
• Related Public URLs: https://arxiv.org/abs/1702.07660