Summary
Using a Lippich double field polarimeter together with a spectrograph, the Faraday rotation for crystals of NaCl, KCl, KBr, KI, NH4Cl, NH4Br, NaClO3, KAl(SO4)2 12H2O and NH4Al(SO4)2 12 H2O have been measured for the wavelengths λ 5893, λ 5780, λ 5461, λ 4358, λ 4046 and λ 3665. The magnetic rotation for concentrated solutions of these crystals in water were also measured. The magneto-optic anomaly for the crystals and solutions has been calculated from the measurements of the dispersion values. It is found that in the case of crystals, γ(NaCl)>γ(KCl)>γ(KBr)>γ(KI) and γ(NH4Cl)>γ(NH4Br). The γ for the solutions except in the case of NaClO3 and the alums is always greater than that for water. The γ values for the ions in solution are higher than those for the ions in the crystal. The presence of covalent bonds tends to diminish the value of γ [γ(NaClO3 crystal)=33% and γ(Alum)=52%]. The γ value for a 50% solution of NaClO3 is 72%.
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References
Becquerel, H.Comptes Rendus, 1897,125, 679.
Darwin and WatsonProc. Roy. Soc., London, A, 1927,114, 474.
HaaseZeit. f. Kryst, 1927,65, 509.
Landau, S.Phys. Z. S., 1908,9, 417.
Mayer, V.Ann. d. Phys. (4), 1909,30, 622.
RamaseshanProc. Ind. Acad. Sc., A, 1946,24, 104.
SoretArch. Sc. Phys (3), 1884,12, 554.
Van VleckTheory of Electric and Magnetic Susceptibility, Oxford, 1932, 367.
VoigtPhys. Z. S., 1908,9, 589.
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(Communicated by Prof. R. S. Krishnan,f.a.sc.)
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Ramaseshan, S. The faraday effect and magneto-optic anomaly of some cubic crystals. Proc. Indian Acad. Sci. (Math. Sci.) 28, 360 (1948). https://doi.org/10.1007/BF03170799
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DOI: https://doi.org/10.1007/BF03170799