## Impurity-induced absorption in or near the phonon gap of KI

Please always quote using this URN: urn:nbn:de:bvb:20-opus-30757
• In or near the phonon gap of KI a single weak line due to OW (OD$$^-$$) at 69.7 (69.3) cm$$^{-1}$$ has been observed. A second and much stronger line at 94.1 cm$$^{-1}$$ was shown not to be related to OH$$^-$$, but instead is thought to be due to CO$$_3$$.