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Refractometry of TGS crystals doped with L-threonine impurity under uniaxial pressure

Research paper by V. I. Stadnyk, Yu. I. Kiryk

Indexed on: 13 Jul '13Published on: 13 Jul '13Published in: Crystallography Reports



Abstract

The temperature and spectral dependences of the refractive indices of triglycine sulphate (TGS) crystals doped with L-threonine impurity have been investigated. It is established that the introduction of an impurity weakens the temperature dependence of refractive indices. The electronic polarizability, refractions, and parameters of UV oscillators of mechanically deformed impurity crystals are calculated. The temperature coefficients of the phase transition shift are determined.