Phys. Rev. B 74, 104426 (2006) [6 pages]Spherical neutron polarimetry of the magnetic structure in HoNi2B2C: Interplay between magnetic phases and superconductivityReceived 24 May 2006; published 29 September 2006 Spherical neutron polarimetry has been used to answer open questions about different magnetic phases in HoNi2B2C, which are important in their interplay with superconductivity. We established that the incommensurate a* structure of k3=(0.585 0 0) at 5.4 K in a zero magnetic field is a transverse-amplitude modulated wave with the magnetic moment along the b direction of the tetragonal structure. The depolarization of a neutron beam scattered from the k2=(0 0 0.915) reflections reveals a multidomain state but does not allow an unambiguous determination of the spin configuration. Based on present knowledge of borocarbides and other rare-earth systems we give preference to a long-range incommensurate helical structure as the origin of the k2=(0 0 0.915) reflections. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.74.104426
DOI:
10.1103/PhysRevB.74.104426
PACS:
75.30.−m, 74.25.Ha, 74.70.Dd, 61.12.Ex
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