A new technique for measuring the critic
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Arthur L. Berman; Edward Gelerinter
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Article
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1975
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Elsevier Science
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English
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The criticzd magnetic field required for unwinhir& cholesteric-nematic mixtures is meanwed by t&i& advantage of the effects of the anisotropy of the dielectric tensor on the coupling of a microwave cavity. The results are used, elong v,ith literature values of the pitch, to obtain (fjz~/~Ix)"'. leak