LOW DOSE IRRADIATION (γ-RAYS) EFFECTS OF MORPHOLOGICAL AND OPTICAL STUDY ON ZnCd (SCN)4

Abstract

Low dose irradiation effects in Single crystals of bimetallic ZnCd(SCN)4 (abbreviated as ZCTC) irradiated with γ-rays. The crystal was grown by slow cooling method and third order optical nonlinearities are investigated by single beam Z-scan technique with a He:Ne laser operated at 632.8 nm. The nonlinear refractive index, absorption coefficient and third order susceptibility are estimated to be -1.99x10-12 cm 2 /W, 5.62x10-6cm/W and 3.94x10-9esu respectively. The full width at half maximum (FWHM) of the diffraction curves is 5.5 arc s, which is very close to that expected from the plane wave theory of dynamical X-ray diffraction. The surface feature is investigated by AFM.