Elucidation of the helical spin structure of FeAs

Ziq, Kh. A.  (King Fahd University of Petroleum and Minerals, Saudi Arabia); Strempfer, J. (DESY Photon Source, Germany); Schoonmaker, R. (Durham University, UK); Lancaster, Tom (Durham University, UK); Steadman, P.  (Diamond Light Source, UK); Lee, S.H.  (Tamkang University, Taiwan); Du, C.-H. (Tamkang University, Taiwan); Hatton, P.D.  (Durham University, UK); Clark, S.J.  (Durham University, UK); Frawley, T. (Durham University, UK)

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Elucidation of the helical spin structure of FeAs Open Access

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.

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Resource type: Dataset
Contributors: Creator: Lancaster, Tom ¹
Contact person: Lancaster, Tom ¹
Creator: Schoonmaker, R. ¹
Creator: Lee, S.H. ²
Creator: Du, C.-H. ²
Creator: Steadman, P. ³
Creator: Strempfer, J. ⁴
Creator: Ziq, Kh. A. ⁵
Creator: Clark, S.J. ¹
Creator: Hatton, P.D. ¹
Creator: Frawley, T. ¹

¹ Durham University, UK
² Tamkang University, Taiwan
³ Diamond Light Source, UK
⁴ DESY Photon Source, Germany
⁵ King Fahd University of Petroleum and Minerals, Saudi Arabia
Funder: Engineering and Physical Sciences Research Council
Research methods
Other description
Keyword: Density functional theory
Spin-orbit coupling
Resonant elastic x-ray scattering
Noncollinear magnets
Subject
Location
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Cited in: doi:10.1103/PhysRevB.95.064424
Identifier: ark:/32150/r36h440s444
doi:10.15128/r36h440s444
Publisher: Durham University
Date Created

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