Far Infrared Properties of Disordered SolidsCornell University, 1995 - 684 pages |
Contents
Introduction | 7 |
Twolevel Systems in Fluorite Mixed Crystals | 9 |
Farinfrared Impurity Modes in Doped Alkaline Earth Fluoride | 125 |
Copyright | |
5 other sections not shown
Common terms and phrases
1.4 K absorption A. J. Sievers absorption bands Absorption coefficient cm-1 absorption spectra absorption strength amorphous materials Amorphous Solids annealed as-grown BaF2 CaF2 doped cell change in absorption Chem clusters cm-ยน cm-1 band concentration dependence concentration samples cryostat curves decrease defect structure degassed density dielectric constant distribution of TLS's dopant concentration dopant ion doped sample doublet energy-loss function excited state transitions far-ir absorption Figure fill fraction fluorite mixed crystals Frequency cm-1 frequency dependence fullerenes fullerite glass-like behavior H2O molecules heat treatment higher frequency higher temperatures increasing temperature ionic radius LaF3 lattice Lett librational longitudinal loss functions low concentration low frequency low temperature LST relation magnetic field measurements mixed crystal systems peak phonon Phys predicted quenched R3+ ions relaxation resonant mode reststrahlen shift in frequency shown in Fig solid spectrum symmetry temperature dependent absorption temperature induced change toluene transverse zero ZnS-diamond composites