Abstract
The observed features of the Raman spectrum of diamond have briefly been summarised and compared with the theoretical conclusions arrived at by Helen Smith on the basis of Born’s postulate of the cyclic lattice. In every respect and especially as regards the form, the extent, the number and sharpness of the lines, the spectrum in the low frequency shift region, etc., the theoretical intensity distribution curve is found to differ widely from what has been observed experimentally. It has been shown that the Born theory as worked out by Smith for the case of diamond is unable to explain the characteristic features of the second-order spectrum of diamond.
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