Journal
JOURNAL OF APPLIED PHYSICS
Volume 95, Issue 11, Pages 6537-6539Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1688252
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We have used circularly polarized x rays to image the spiral magnetic domain structure in a single crystal of Ho metal. In these structures, the magnetization direction rotates between successive atomic layers forming a helix. At magnetic Bragg diffraction peaks, circularly polarized x rays are sensitive to the handedness of such a helix (i.e., either right or left handed). By reversing the helicity of the incident beam with phase-retarding optics and measuring the difference in the Bragg scattering, contrast between domains of opposing handedness can be obtained. (C) 2004 American Institute of Physics.
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