Struktur und ultrarote Gitterschwingung von CaF2 und LiF |
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| Authors: | Gottfried Berthold |
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| Institution: | 1. I. Physikalischen Institut der Universit?t G?ttingen, Germany
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| Abstract: | Thin films of CaF2, LiF and LiF +20% KF are condensed on to substrates at 20 °K. Immediately after condensation and after annealing to 373 °K the infrared absorption is measured between 15 and 43 microns. Also Debye-Scherrer-diagrams are taken for investigating the structure of the layers. After condensation at 20 °K LiF has a high degree of disorder, CaF2 and LiF+20% KF show amorphous phases. The infrared lattice vibration of such films is shifted to shorter wavelenghts. |
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