Abstract
Ehrenhaft and Banet have reported1 finding that magnetic poles are produced in various pieces of “non-magnetic” and annealed pieces of iron by exposure to ultra-violet radiation. The detecting instrument used was a simple compass needle. Focken2, on the other hand, repeated these experiments with more sensitive apparatus, but found no evidence of any such induced magnetization. We have recently attempted similar experiments.
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References
Ehrenhaft, F., and Banet, L., NATURE, 147, 297 (1941).
Focken, C. M., NATURE, 148, 438 (1941).
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MARTIN, S., CONNOR, A. Magnetization of Matter by Ultra-Violet Radiation. Nature 151, 167 (1943). https://doi.org/10.1038/151167a0
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DOI: https://doi.org/10.1038/151167a0
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