Abstract
Antiferromagnetic domains in NiO have been studied by neutron diffraction and optical observation of single crystals. There are two kinds of antiferromagnetic domain walls, T (twin) and S (spin-rotation). A T wall is produced by rotation of the antiferromagnetic pattern of magnetic moments and an S wall by rotation of the direction of the magnetic moments. The T walls can be observed with polarized light, and both T- and S-type domains can be studied by neutron diffraction. Crystals with simple T-wall structures are produced by annealing at high temperature. The crystallography of the T walls can be understood in terms of a small rhombohedral deformation which accompanies the antiferromagnetic ordering. The T walls are easily displaced by the application of small mechanical stresses or magnetic fields. A crystal without T walls may still contain S walls, and these S walls also are displaced or rotated by magnetic fields.
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Dates
Type | When |
---|---|
Created | 20 years, 3 months ago (April 25, 2005, 1:03 p.m.) |
Deposited | 1 year, 6 months ago (Feb. 1, 2024, 2:28 p.m.) |
Indexed | 3 weeks, 2 days ago (Aug. 2, 2025, 12:20 a.m.) |
Issued | 64 years, 9 months ago (Nov. 1, 1960) |
Published | 64 years, 9 months ago (Nov. 1, 1960) |
Published Print | 64 years, 9 months ago (Nov. 1, 1960) |
@article{Roth_1960, title={Neutron and Optical Studies of Domains in NiO}, volume={31}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.1735486}, DOI={10.1063/1.1735486}, number={11}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Roth, W. L.}, year={1960}, month=nov, pages={2000–2011} }