Abstract
The infrared reflectances of virgin and γ-ray irradiated NaNO2 have been determined from the reflection spectra which have been investigated as functions of temperature (ranging from RT to 180 °C) and crystallographic orientation, and γ-ray irradiation dose (4×107 and 3×108 röntgen.) over a frequency region between 700 and 2000 cm−1. Using the Kramers-Kronig dispersion relation, we have obtained the dielectric function and oscillator parameters from the reflection spectra. These constants are used to explain the ferroelectric properties of NaNO2. In addition the observed differences between the reflection spectra of virgin and those of γ-ray irradiated NaNO2 are explained using a broken-bond model.
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