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Magnetic Rotatory Power of Crystalline Nickel Sulphate in the Short Infra-Red Spectrum
Phys. Rev. 64, 75 – Published 1 August, 1943
DOI: https://doi.org/10.1103/PhysRev.64.75
Abstract
The magneto-optical activity of thin crystals of nickel sulphate -hexahydrate has been measured by means of the spectroradiometric method in the spectral range 0.7μ to 1.9μ and for ordinary and low (-125°C) temperatures. The curves showing the dispersion of the rotation have marked anomalies in the region of 0.69μ and particularly 1.16μ, matching the ones found in the optical rotation for these wave-lengths. The ratio of the rotations at low temperatures and room temperature is itself an anomalous curve. The effects can be qualitatively explained on the basis of the inverse Zeeman effect.
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