489 research outputs found
The magnetic and optical properties of the benzene ring in aromatic compounds
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Raman effect in relation to crystal structure: lattice oscillations
This article does not have an abstract
Crystal symmetry and nonlinear optical properties
In an introductory section, the symmetry properties of some of the higher rank polar tensors relating to nonlinear optical polarization are briefly enumerated. It is noted that linear magneto-electric polarizability has been experimentally measured and that the reported results are in conformity with the theory. Symmetry properties of the higher rank axial tensors relating to nonlinear magneto-electric effect are enumerated and it is suggested that such an effect is possible in some crystals in the anti-ferromagnetic state. In all these studies, methods developed earlier by the author have been used
Rotational Raman scattering in benzene
A study of the intensity distribution in the rotation wing accompanying the Rayleigh lines in liquid benzene in makde using a high dispersion spectrograph. The results are in perfect agreement with those obtained on earlier occasions using instruments of lower dispersion
Quadratic-in-magnetization permittivity and conductivity tensor in cubic crystals
We present diagonal and off-diagonal elements of the permittivity and
conductivity tensor up to the second order in magnetization for cubic crystals.
We express all tensor elements as a function of a general sample orientation,
for arbitrary magnetization direction and for (001), (011) and (111) surface
orientations. Finally, we discuss, how to extract values of quadratic elements
G of the second order permittivity tensors for different sample surface
orientations from both experiment and ab-initio calculations
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