Measurements of magnetostriction on a single crystal of antiferro-magnetic nickel oxide were made in fields up to 21 kilo-oersteds. The order of magnitude of the magnetostriction is the same as that for ferromagnetic materials, viz about -20 × 10 -6 and a square law relation, with field, is obeyed up to several thousand oersteds before a gradual saturation tends to set in. The dependence of strain on field and measuring directions is described with respect to axes that constitute cylindrical symmetry.
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Alberts et al. (1961) studied this question.
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